21358800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:390

約数の個数: 180

約数和(自身を含む): 78705900

約数和(自身を除く): 57347100

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 25, 30, 34, 36, 40, 45, 48, 50, 51, 60, 68, 72, 75, 80, 85, 90, 100, 102, 120, 136, 144, 150, 153, 170, 180, 200, 204, 225, 240, 255, 272, 300, 306, 340, 349, 360, 400, 408, 425, 450, 510, 600, 612, 680, 698, 720, 765, 816, 850, 900, 1020, 1047, 1200, 1224, 1275, 1360, 1396, 1530, 1700, 1745, 1800, 2040, 2094, 2448, 2550, 2792, 3060, 3141, 3400, 3490, 3600, 3825, 4080, 4188, 5100, 5235, 5584, 5933, 6120, 6282, 6800, 6980, 7650, 8376, 8725, 10200, 10470, 11866, 12240, 12564, 13960, 15300, 15705, 16752, 17450, 17799, 20400, 20940, 23732, 25128, 26175, 27920, 29665, 30600, 31410, 34900, 35598, 41880, 47464, 50256, 52350, 53397, 59330, 61200, 62820, 69800, 71196, 78525, 83760, 88995, 94928, 104700, 106794, 118660, 125640, 139600, 142392, 148325, 157050, 177990, 209400, 213588, 237320, 251280, 266985, 284784, 296650, 314100, 355980, 418800, 427176, 444975, 474640, 533970, 593300, 628200, 711960, 854352, 889950, 1067940, 1186600, 1256400, 1334925, 1423920, 1779900, 2135880, 2373200, 2669850, 3559800, 4271760, 5339700, 7119600, 10679400, 21358800]

約数ペア:

[(1, 21358800), (2, 10679400), (3, 7119600), (4, 5339700), (5, 4271760), (6, 3559800), (8, 2669850), (9, 2373200), (10, 2135880), (12, 1779900), (15, 1423920), (16, 1334925), (17, 1256400), (18, 1186600), (20, 1067940), (24, 889950), (25, 854352), (30, 711960), (34, 628200), (36, 593300), (40, 533970), (45, 474640), (48, 444975), (50, 427176), (51, 418800), (60, 355980), (68, 314100), (72, 296650), (75, 284784), (80, 266985), (85, 251280), (90, 237320), (100, 213588), (102, 209400), (120, 177990), (136, 157050), (144, 148325), (150, 142392), (153, 139600), (170, 125640), (180, 118660), (200, 106794), (204, 104700), (225, 94928), (240, 88995), (255, 83760), (272, 78525), (300, 71196), (306, 69800), (340, 62820), (349, 61200), (360, 59330), (400, 53397), (408, 52350), (425, 50256), (450, 47464), (510, 41880), (600, 35598), (612, 34900), (680, 31410), (698, 30600), (720, 29665), (765, 27920), (816, 26175), (850, 25128), (900, 23732), (1020, 20940), (1047, 20400), (1200, 17799), (1224, 17450), (1275, 16752), (1360, 15705), (1396, 15300), (1530, 13960), (1700, 12564), (1745, 12240), (1800, 11866), (2040, 10470), (2094, 10200), (2448, 8725), (2550, 8376), (2792, 7650), (3060, 6980), (3141, 6800), (3400, 6282), (3490, 6120), (3600, 5933), (3825, 5584), (4080, 5235), (4188, 5100)]