20827404

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 57238272

約数和(自身を除く): 36410868

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 191, 233, 234, 382, 466, 468, 573, 699, 764, 932, 1146, 1398, 1719, 2097, 2292, 2483, 2796, 3029, 3438, 4194, 4966, 6058, 6876, 7449, 8388, 9087, 9932, 12116, 14898, 18174, 22347, 27261, 29796, 36348, 44503, 44694, 54522, 89006, 89388, 109044, 133509, 178012, 267018, 400527, 534036, 578539, 801054, 1157078, 1602108, 1735617, 2314156, 3471234, 5206851, 6942468, 10413702, 20827404]

約数ペア:

[(1, 20827404), (2, 10413702), (3, 6942468), (4, 5206851), (6, 3471234), (9, 2314156), (12, 1735617), (13, 1602108), (18, 1157078), (26, 801054), (36, 578539), (39, 534036), (52, 400527), (78, 267018), (117, 178012), (156, 133509), (191, 109044), (233, 89388), (234, 89006), (382, 54522), (466, 44694), (468, 44503), (573, 36348), (699, 29796), (764, 27261), (932, 22347), (1146, 18174), (1398, 14898), (1719, 12116), (2097, 9932), (2292, 9087), (2483, 8388), (2796, 7449), (3029, 6876), (3438, 6058), (4194, 4966)]