21577860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1338

約数の個数: 96

約数和(自身を含む): 69350400

約数和(自身を除く): 47772540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 90, 93, 108, 124, 135, 155, 180, 186, 270, 279, 310, 372, 465, 540, 558, 620, 837, 930, 1116, 1289, 1395, 1674, 1860, 2578, 2790, 3348, 3867, 4185, 5156, 5580, 6445, 7734, 8370, 11601, 12890, 15468, 16740, 19335, 23202, 25780, 34803, 38670, 39959, 46404, 58005, 69606, 77340, 79918, 116010, 119877, 139212, 159836, 174015, 199795, 232020, 239754, 348030, 359631, 399590, 479508, 599385, 696060, 719262, 799180, 1078893, 1198770, 1438524, 1798155, 2157786, 2397540, 3596310, 4315572, 5394465, 7192620, 10788930, 21577860]

約数ペア:

[(1, 21577860), (2, 10788930), (3, 7192620), (4, 5394465), (5, 4315572), (6, 3596310), (9, 2397540), (10, 2157786), (12, 1798155), (15, 1438524), (18, 1198770), (20, 1078893), (27, 799180), (30, 719262), (31, 696060), (36, 599385), (45, 479508), (54, 399590), (60, 359631), (62, 348030), (90, 239754), (93, 232020), (108, 199795), (124, 174015), (135, 159836), (155, 139212), (180, 119877), (186, 116010), (270, 79918), (279, 77340), (310, 69606), (372, 58005), (465, 46404), (540, 39959), (558, 38670), (620, 34803), (837, 25780), (930, 23202), (1116, 19335), (1289, 16740), (1395, 15468), (1674, 12890), (1860, 11601), (2578, 8370), (2790, 7734), (3348, 6445), (3867, 5580), (4185, 5156)]