21000906430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{75437}}^1$

素因数の和:75589

約数の個数: 64

約数和(自身を含む): 44712404352

約数和(自身を除く): 23711497922

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 97, 194, 205, 287, 410, 485, 574, 679, 970, 1358, 1435, 2870, 3395, 3977, 6790, 7954, 19885, 27839, 39770, 55678, 75437, 139195, 150874, 278390, 377185, 528059, 754370, 1056118, 2640295, 3092917, 5280590, 6185834, 7317389, 14634778, 15464585, 21650419, 30929170, 36586945, 43300838, 51221723, 73173890, 102443446, 108252095, 216504190, 256108615, 300012949, 512217230, 600025898, 1500064745, 2100090643, 3000129490, 4200181286, 10500453215, 21000906430]

約数ペア:

[(1, 21000906430), (2, 10500453215), (5, 4200181286), (7, 3000129490), (10, 2100090643), (14, 1500064745), (35, 600025898), (41, 512217230), (70, 300012949), (82, 256108615), (97, 216504190), (194, 108252095), (205, 102443446), (287, 73173890), (410, 51221723), (485, 43300838), (574, 36586945), (679, 30929170), (970, 21650419), (1358, 15464585), (1435, 14634778), (2870, 7317389), (3395, 6185834), (3977, 5280590), (6790, 3092917), (7954, 2640295), (19885, 1056118), (27839, 754370), (39770, 528059), (55678, 377185), (75437, 278390), (139195, 150874)]