21191350

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 42305328

約数和(自身を除く): 21113978

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 107, 170, 214, 233, 425, 466, 535, 850, 1070, 1165, 1819, 2330, 2675, 3638, 3961, 5350, 5825, 7922, 9095, 11650, 18190, 19805, 24931, 39610, 45475, 49862, 90950, 99025, 124655, 198050, 249310, 423827, 623275, 847654, 1246550, 2119135, 4238270, 10595675, 21191350]

約数ペア:

[(1, 21191350), (2, 10595675), (5, 4238270), (10, 2119135), (17, 1246550), (25, 847654), (34, 623275), (50, 423827), (85, 249310), (107, 198050), (170, 124655), (214, 99025), (233, 90950), (425, 49862), (466, 45475), (535, 39610), (850, 24931), (1070, 19805), (1165, 18190), (1819, 11650), (2330, 9095), (2675, 7922), (3638, 5825), (3961, 5350)]