21231300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 47014332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 25, 30, 34, 46, 50, 51, 60, 68, 69, 75, 85, 92, 100, 102, 115, 138, 150, 170, 181, 204, 230, 255, 276, 300, 340, 345, 362, 391, 425, 460, 510, 543, 575, 690, 724, 782, 850, 905, 1020, 1086, 1150, 1173, 1275, 1380, 1564, 1700, 1725, 1810, 1955, 2172, 2300, 2346, 2550, 2715, 3077, 3450, 3620, 3910, 4163, 4525, 4692, 5100, 5430, 5865, 6154, 6900, 7820, 8326, 9050, 9231, 9775, 10860, 11730, 12308, 12489, 13575, 15385, 16652, 18100, 18462, 19550, 20815, 23460, 24978, 27150, 29325, 30770, 36924, 39100, 41630, 46155, 49956, 54300, 58650, 61540, 62445, 70771, 76925, 83260, 92310, 104075, 117300, 124890, 141542, 153850, 184620, 208150, 212313, 230775, 249780, 283084, 307700, 312225, 353855, 416300, 424626, 461550, 624450, 707710, 849252, 923100, 1061565, 1248900, 1415420, 1769275, 2123130, 3538550, 4246260, 5307825, 7077100, 10615650, 21231300]

約数ペア:

[(1, 21231300), (2, 10615650), (3, 7077100), (4, 5307825), (5, 4246260), (6, 3538550), (10, 2123130), (12, 1769275), (15, 1415420), (17, 1248900), (20, 1061565), (23, 923100), (25, 849252), (30, 707710), (34, 624450), (46, 461550), (50, 424626), (51, 416300), (60, 353855), (68, 312225), (69, 307700), (75, 283084), (85, 249780), (92, 230775), (100, 212313), (102, 208150), (115, 184620), (138, 153850), (150, 141542), (170, 124890), (181, 117300), (204, 104075), (230, 92310), (255, 83260), (276, 76925), (300, 70771), (340, 62445), (345, 61540), (362, 58650), (391, 54300), (425, 49956), (460, 46155), (510, 41630), (543, 39100), (575, 36924), (690, 30770), (724, 29325), (782, 27150), (850, 24978), (905, 23460), (1020, 20815), (1086, 19550), (1150, 18462), (1173, 18100), (1275, 16652), (1380, 15385), (1564, 13575), (1700, 12489), (1725, 12308), (1810, 11730), (1955, 10860), (2172, 9775), (2300, 9231), (2346, 9050), (2550, 8326), (2715, 7820), (3077, 6900), (3450, 6154), (3620, 5865), (3910, 5430), (4163, 5100), (4525, 4692)]