21574371

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{6079}}^1$

素因数の和:6115

約数の個数: 24

約数和(自身を含む): 35604480

約数和(自身を除く): 14030109

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 6079, 18237, 42553, 79027, 127659, 237081, 553189, 1027351, 1659567, 3082053, 7191457, 21574371]

約数ペア:

[(1, 21574371), (3, 7191457), (7, 3082053), (13, 1659567), (21, 1027351), (39, 553189), (91, 237081), (169, 127659), (273, 79027), (507, 42553), (1183, 18237), (3549, 6079)]