21134500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{983}}^1$

素因数の和:1045

約数の個数: 48

約数和(自身を含む): 47279232

約数和(自身を除く): 26144732

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 860, 983, 1075, 1966, 2150, 3932, 4300, 4915, 5375, 9830, 10750, 19660, 21500, 24575, 42269, 49150, 84538, 98300, 122875, 169076, 211345, 245750, 422690, 491500, 845380, 1056725, 2113450, 4226900, 5283625, 10567250, 21134500]

約数ペア:

[(1, 21134500), (2, 10567250), (4, 5283625), (5, 4226900), (10, 2113450), (20, 1056725), (25, 845380), (43, 491500), (50, 422690), (86, 245750), (100, 211345), (125, 169076), (172, 122875), (215, 98300), (250, 84538), (430, 49150), (500, 42269), (860, 24575), (983, 21500), (1075, 19660), (1966, 10750), (2150, 9830), (3932, 5375), (4300, 4915)]