21757650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1987}}^1$

素因数の和:2075

約数の個数: 48

約数和(自身を含む): 54725664

約数和(自身を除く): 32968014

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 73, 75, 146, 150, 219, 365, 438, 730, 1095, 1825, 1987, 2190, 3650, 3974, 5475, 5961, 9935, 10950, 11922, 19870, 29805, 49675, 59610, 99350, 145051, 149025, 290102, 298050, 435153, 725255, 870306, 1450510, 2175765, 3626275, 4351530, 7252550, 10878825, 21757650]

約数ペア:

[(1, 21757650), (2, 10878825), (3, 7252550), (5, 4351530), (6, 3626275), (10, 2175765), (15, 1450510), (25, 870306), (30, 725255), (50, 435153), (73, 298050), (75, 290102), (146, 149025), (150, 145051), (219, 99350), (365, 59610), (438, 49675), (730, 29805), (1095, 19870), (1825, 11922), (1987, 10950), (2190, 9935), (3650, 5961), (3974, 5475)]