21601700

素因数分解:

$2^2\times 5^2\times {\mathrm{337}}^1\times {\mathrm{641}}^1$

素因数の和:992

約数の個数: 36

約数和(自身を含む): 47088132

約数和(自身を除く): 25486432

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 337, 641, 674, 1282, 1348, 1685, 2564, 3205, 3370, 6410, 6740, 8425, 12820, 16025, 16850, 32050, 33700, 64100, 216017, 432034, 864068, 1080085, 2160170, 4320340, 5400425, 10800850, 21601700]

約数ペア:

[(1, 21601700), (2, 10800850), (4, 5400425), (5, 4320340), (10, 2160170), (20, 1080085), (25, 864068), (50, 432034), (100, 216017), (337, 64100), (641, 33700), (674, 32050), (1282, 16850), (1348, 16025), (1685, 12820), (2564, 8425), (3205, 6740), (3370, 6410)]