21290668

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{4201}}^1$

素因数の和:4393

約数の個数: 24

約数和(自身を含む): 42826784

約数和(自身を除く): 21536116

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 4201, 5068, 8402, 16804, 29407, 58814, 117628, 760381, 1520762, 3041524, 5322667, 10645334, 21290668]

約数ペア:

[(1, 21290668), (2, 10645334), (4, 5322667), (7, 3041524), (14, 1520762), (28, 760381), (181, 117628), (362, 58814), (724, 29407), (1267, 16804), (2534, 8402), (4201, 5068)]