21000902520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{363841}}^1$

素因数の和:363905

約数の個数: 128

約数和(自身を含む): 69683019840

約数和(自身を除く): 48682117320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 37, 39, 40, 52, 60, 65, 74, 78, 104, 111, 120, 130, 148, 156, 185, 195, 222, 260, 296, 312, 370, 390, 444, 481, 520, 555, 740, 780, 888, 962, 1110, 1443, 1480, 1560, 1924, 2220, 2405, 2886, 3848, 4440, 4810, 5772, 7215, 9620, 11544, 14430, 19240, 28860, 57720, 363841, 727682, 1091523, 1455364, 1819205, 2183046, 2910728, 3638410, 4366092, 4729933, 5457615, 7276820, 8732184, 9459866, 10915230, 13462117, 14189799, 14553640, 18919732, 21830460, 23649665, 26924234, 28379598, 37839464, 40386351, 43660920, 47299330, 53848468, 56759196, 67310585, 70948995, 80772702, 94598660, 107696936, 113518392, 134621170, 141897990, 161545404, 175007521, 189197320, 201931755, 269242340, 283795980, 323090808, 350015042, 403863510, 525022563, 538484680, 567591960, 700030084, 807727020, 875037605, 1050045126, 1400060168, 1615454040, 1750075210, 2100090252, 2625112815, 3500150420, 4200180504, 5250225630, 7000300840, 10500451260, 21000902520]

約数ペア:

[(1, 21000902520), (2, 10500451260), (3, 7000300840), (4, 5250225630), (5, 4200180504), (6, 3500150420), (8, 2625112815), (10, 2100090252), (12, 1750075210), (13, 1615454040), (15, 1400060168), (20, 1050045126), (24, 875037605), (26, 807727020), (30, 700030084), (37, 567591960), (39, 538484680), (40, 525022563), (52, 403863510), (60, 350015042), (65, 323090808), (74, 283795980), (78, 269242340), (104, 201931755), (111, 189197320), (120, 175007521), (130, 161545404), (148, 141897990), (156, 134621170), (185, 113518392), (195, 107696936), (222, 94598660), (260, 80772702), (296, 70948995), (312, 67310585), (370, 56759196), (390, 53848468), (444, 47299330), (481, 43660920), (520, 40386351), (555, 37839464), (740, 28379598), (780, 26924234), (888, 23649665), (962, 21830460), (1110, 18919732), (1443, 14553640), (1480, 14189799), (1560, 13462117), (1924, 10915230), (2220, 9459866), (2405, 8732184), (2886, 7276820), (3848, 5457615), (4440, 4729933), (4810, 4366092), (5772, 3638410), (7215, 2910728), (9620, 2183046), (11544, 1819205), (14430, 1455364), (19240, 1091523), (28860, 727682), (57720, 363841)]