21239120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:157

約数の個数: 160

約数和(自身を含む): 62995968

約数和(自身を除く): 41756848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 80, 85, 92, 97, 112, 115, 119, 136, 140, 161, 170, 184, 194, 230, 238, 272, 280, 322, 340, 368, 388, 391, 460, 476, 485, 560, 595, 644, 679, 680, 776, 782, 805, 920, 952, 970, 1190, 1288, 1358, 1360, 1552, 1564, 1610, 1649, 1840, 1904, 1940, 1955, 2231, 2380, 2576, 2716, 2737, 3128, 3220, 3298, 3395, 3880, 3910, 4462, 4760, 5432, 5474, 6256, 6440, 6596, 6790, 7760, 7820, 8245, 8924, 9520, 10864, 10948, 11155, 11543, 12880, 13192, 13580, 13685, 15617, 15640, 16490, 17848, 21896, 22310, 23086, 26384, 27160, 27370, 31234, 31280, 32980, 35696, 37927, 43792, 44620, 46172, 54320, 54740, 57715, 62468, 65960, 75854, 78085, 89240, 92344, 109480, 115430, 124936, 131920, 151708, 156170, 178480, 184688, 189635, 218960, 230860, 249872, 265489, 303416, 312340, 379270, 461720, 530978, 606832, 624680, 758540, 923440, 1061956, 1249360, 1327445, 1517080, 2123912, 2654890, 3034160, 4247824, 5309780, 10619560, 21239120]

約数ペア:

[(1, 21239120), (2, 10619560), (4, 5309780), (5, 4247824), (7, 3034160), (8, 2654890), (10, 2123912), (14, 1517080), (16, 1327445), (17, 1249360), (20, 1061956), (23, 923440), (28, 758540), (34, 624680), (35, 606832), (40, 530978), (46, 461720), (56, 379270), (68, 312340), (70, 303416), (80, 265489), (85, 249872), (92, 230860), (97, 218960), (112, 189635), (115, 184688), (119, 178480), (136, 156170), (140, 151708), (161, 131920), (170, 124936), (184, 115430), (194, 109480), (230, 92344), (238, 89240), (272, 78085), (280, 75854), (322, 65960), (340, 62468), (368, 57715), (388, 54740), (391, 54320), (460, 46172), (476, 44620), (485, 43792), (560, 37927), (595, 35696), (644, 32980), (679, 31280), (680, 31234), (776, 27370), (782, 27160), (805, 26384), (920, 23086), (952, 22310), (970, 21896), (1190, 17848), (1288, 16490), (1358, 15640), (1360, 15617), (1552, 13685), (1564, 13580), (1610, 13192), (1649, 12880), (1840, 11543), (1904, 11155), (1940, 10948), (1955, 10864), (2231, 9520), (2380, 8924), (2576, 8245), (2716, 7820), (2737, 7760), (3128, 6790), (3220, 6596), (3298, 6440), (3395, 6256), (3880, 5474), (3910, 5432), (4462, 4760)]