20518524

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2579}}^1$

素因数の和:2619

約数の個数: 72

約数和(自身を含む): 59164560

約数和(自身を除く): 38646036

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2579, 2652, 3978, 5158, 7737, 7956, 10316, 15474, 23211, 30948, 33527, 43843, 46422, 67054, 87686, 92844, 100581, 131529, 134108, 175372, 201162, 263058, 301743, 394587, 402324, 526116, 569959, 603486, 789174, 1139918, 1206972, 1578348, 1709877, 2279836, 3419754, 5129631, 6839508, 10259262, 20518524]

約数ペア:

[(1, 20518524), (2, 10259262), (3, 6839508), (4, 5129631), (6, 3419754), (9, 2279836), (12, 1709877), (13, 1578348), (17, 1206972), (18, 1139918), (26, 789174), (34, 603486), (36, 569959), (39, 526116), (51, 402324), (52, 394587), (68, 301743), (78, 263058), (102, 201162), (117, 175372), (153, 134108), (156, 131529), (204, 100581), (221, 92844), (234, 87686), (306, 67054), (442, 46422), (468, 43843), (612, 33527), (663, 30948), (884, 23211), (1326, 15474), (1989, 10316), (2579, 7956), (2652, 7737), (3978, 5158)]