21915964

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{34031}}^1$

素因数の和:34065

約数の個数: 24

約数和(自身を含む): 45739008

約数和(自身を除く): 23823044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 34031, 68062, 136124, 238217, 476434, 782713, 952868, 1565426, 3130852, 5478991, 10957982, 21915964]

約数ペア:

[(1, 21915964), (2, 10957982), (4, 5478991), (7, 3130852), (14, 1565426), (23, 952868), (28, 782713), (46, 476434), (92, 238217), (161, 136124), (322, 68062), (644, 34031)]