81506404

素因数分解:

$2^2\times 7^3\times {\mathrm{59407}}^1$

素因数の和:59432

約数の個数: 24

約数和(自身を含む): 166342400

約数和(自身を除く): 84835996

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 59407, 118814, 237628, 415849, 831698, 1663396, 2910943, 5821886, 11643772, 20376601, 40753202, 81506404]

約数ペア:

[(1, 81506404), (2, 40753202), (4, 20376601), (7, 11643772), (14, 5821886), (28, 2910943), (49, 1663396), (98, 831698), (196, 415849), (343, 237628), (686, 118814), (1372, 59407)]