21398889604

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4696859}}^1$

素因数の和:4696947

約数の個数: 24

約数和(自身を含む): 40242696480

約数和(自身を除く): 18843806876

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4556, 4696859, 9393718, 18787436, 79846603, 159693206, 314689553, 319386412, 629379106, 1258758212, 5349722401, 10699444802, 21398889604]

約数ペア:

[(1, 21398889604), (2, 10699444802), (4, 5349722401), (17, 1258758212), (34, 629379106), (67, 319386412), (68, 314689553), (134, 159693206), (268, 79846603), (1139, 18787436), (2278, 9393718), (4556, 4696859)]