21760459

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:355

約数の個数: 24

約数和(自身を含む): 27135648

約数和(自身を除く): 5375189

約数列:

[1, 7, 17, 49, 119, 151, 173, 833, 1057, 1211, 2567, 2941, 7399, 8477, 17969, 20587, 26123, 125783, 144109, 182861, 444091, 1280027, 3108637, 21760459]

約数ペア:

[(1, 21760459), (7, 3108637), (17, 1280027), (49, 444091), (119, 182861), (151, 144109), (173, 125783), (833, 26123), (1057, 20587), (1211, 17969), (2567, 8477), (2941, 7399)]