21079472

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:341

約数の個数: 40

約数和(自身を含む): 41983920

約数和(自身を除く): 20904448

約数列:

[1, 2, 4, 8, 16, 89, 113, 131, 178, 226, 262, 356, 452, 524, 712, 904, 1048, 1424, 1808, 2096, 10057, 11659, 14803, 20114, 23318, 29606, 40228, 46636, 59212, 80456, 93272, 118424, 160912, 186544, 236848, 1317467, 2634934, 5269868, 10539736, 21079472]

約数ペア:

[(1, 21079472), (2, 10539736), (4, 5269868), (8, 2634934), (16, 1317467), (89, 236848), (113, 186544), (131, 160912), (178, 118424), (226, 93272), (262, 80456), (356, 59212), (452, 46636), (524, 40228), (712, 29606), (904, 23318), (1048, 20114), (1424, 14803), (1808, 11659), (2096, 10057)]