20561508

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 57264480

約数和(自身を除く): 36702972

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 137, 198, 274, 379, 396, 411, 548, 758, 822, 1137, 1233, 1507, 1516, 1644, 2274, 2466, 3014, 3411, 4169, 4521, 4548, 4932, 6028, 6822, 8338, 9042, 12507, 13563, 13644, 16676, 18084, 25014, 27126, 37521, 50028, 51923, 54252, 75042, 103846, 150084, 155769, 207692, 311538, 467307, 571153, 623076, 934614, 1142306, 1713459, 1869228, 2284612, 3426918, 5140377, 6853836, 10280754, 20561508]

約数ペア:

[(1, 20561508), (2, 10280754), (3, 6853836), (4, 5140377), (6, 3426918), (9, 2284612), (11, 1869228), (12, 1713459), (18, 1142306), (22, 934614), (33, 623076), (36, 571153), (44, 467307), (66, 311538), (99, 207692), (132, 155769), (137, 150084), (198, 103846), (274, 75042), (379, 54252), (396, 51923), (411, 50028), (548, 37521), (758, 27126), (822, 25014), (1137, 18084), (1233, 16676), (1507, 13644), (1516, 13563), (1644, 12507), (2274, 9042), (2466, 8338), (3014, 6822), (3411, 6028), (4169, 4932), (4521, 4548)]