20403721793

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1\times {\mathrm{13309}}^1$

素因数の和:14337

約数の個数: 32

約数和(自身を含む): 26618296320

約数和(自身を除く): 6214574527

約数列:

[1, 7, 13, 17, 91, 119, 221, 991, 1547, 6937, 12883, 13309, 16847, 90181, 93163, 117929, 173017, 219011, 226253, 1211119, 1533077, 1583771, 2941289, 13189219, 20589023, 92324533, 171459847, 224216723, 1200218929, 1569517061, 2914817399, 20403721793]

約数ペア:

[(1, 20403721793), (7, 2914817399), (13, 1569517061), (17, 1200218929), (91, 224216723), (119, 171459847), (221, 92324533), (991, 20589023), (1547, 13189219), (6937, 2941289), (12883, 1583771), (13309, 1533077), (16847, 1211119), (90181, 226253), (93163, 219011), (117929, 173017)]