21459420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4111}}^1$

素因数の和:4155

約数の個数: 72

約数和(自身を含む): 67354560

約数和(自身を除く): 45895140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 4111, 5220, 8222, 12333, 16444, 20555, 24666, 36999, 41110, 49332, 61665, 73998, 82220, 119219, 123330, 147996, 184995, 238438, 246660, 357657, 369990, 476876, 596095, 715314, 739980, 1072971, 1192190, 1430628, 1788285, 2145942, 2384380, 3576570, 4291884, 5364855, 7153140, 10729710, 21459420]

約数ペア:

[(1, 21459420), (2, 10729710), (3, 7153140), (4, 5364855), (5, 4291884), (6, 3576570), (9, 2384380), (10, 2145942), (12, 1788285), (15, 1430628), (18, 1192190), (20, 1072971), (29, 739980), (30, 715314), (36, 596095), (45, 476876), (58, 369990), (60, 357657), (87, 246660), (90, 238438), (116, 184995), (145, 147996), (174, 123330), (180, 119219), (261, 82220), (290, 73998), (348, 61665), (435, 49332), (522, 41110), (580, 36999), (870, 24666), (1044, 20555), (1305, 16444), (1740, 12333), (2610, 8222), (4111, 5220)]