21580700

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{3221}}^1$

素因数の和:3302

約数の個数: 36

約数和(自身を含む): 47543832

約数和(自身を除く): 25963132

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 134, 268, 335, 670, 1340, 1675, 3221, 3350, 6442, 6700, 12884, 16105, 32210, 64420, 80525, 161050, 215807, 322100, 431614, 863228, 1079035, 2158070, 4316140, 5395175, 10790350, 21580700]

約数ペア:

[(1, 21580700), (2, 10790350), (4, 5395175), (5, 4316140), (10, 2158070), (20, 1079035), (25, 863228), (50, 431614), (67, 322100), (100, 215807), (134, 161050), (268, 80525), (335, 64420), (670, 32210), (1340, 16105), (1675, 12884), (3221, 6700), (3350, 6442)]