21028696740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12980677}}^1$

素因数の和:12980698

約数の個数: 60

約数和(自身を含む): 65967805596

約数和(自身を除く): 44939108856

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12980677, 25961354, 38942031, 51922708, 64903385, 77884062, 116826093, 129806770, 155768124, 194710155, 233652186, 259613540, 350478279, 389420310, 467304372, 584130465, 700956558, 778840620, 1051434837, 1168260930, 1401913116, 1752391395, 2102869674, 2336521860, 3504782790, 4205739348, 5257174185, 7009565580, 10514348370, 21028696740]

約数ペア:

[(1, 21028696740), (2, 10514348370), (3, 7009565580), (4, 5257174185), (5, 4205739348), (6, 3504782790), (9, 2336521860), (10, 2102869674), (12, 1752391395), (15, 1401913116), (18, 1168260930), (20, 1051434837), (27, 778840620), (30, 700956558), (36, 584130465), (45, 467304372), (54, 389420310), (60, 350478279), (81, 259613540), (90, 233652186), (108, 194710155), (135, 155768124), (162, 129806770), (180, 116826093), (270, 77884062), (324, 64903385), (405, 51922708), (540, 38942031), (810, 25961354), (1620, 12980677)]