21169900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6829}}^1$

素因数の和:6874

約数の個数: 36

約数和(自身を含む): 47427520

約数和(自身を除く): 26257620

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6829, 13658, 27316, 34145, 68290, 136580, 170725, 211699, 341450, 423398, 682900, 846796, 1058495, 2116990, 4233980, 5292475, 10584950, 21169900]

約数ペア:

[(1, 21169900), (2, 10584950), (4, 5292475), (5, 4233980), (10, 2116990), (20, 1058495), (25, 846796), (31, 682900), (50, 423398), (62, 341450), (100, 211699), (124, 170725), (155, 136580), (310, 68290), (620, 34145), (775, 27316), (1550, 13658), (3100, 6829)]