21685140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120473}}^1$

素因数の和:120488

約数の個数: 36

約数和(自身を含む): 65778804

約数和(自身を除く): 44093664

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120473, 240946, 361419, 481892, 602365, 722838, 1084257, 1204730, 1445676, 1807095, 2168514, 2409460, 3614190, 4337028, 5421285, 7228380, 10842570, 21685140]

約数ペア:

[(1, 21685140), (2, 10842570), (3, 7228380), (4, 5421285), (5, 4337028), (6, 3614190), (9, 2409460), (10, 2168514), (12, 1807095), (15, 1445676), (18, 1204730), (20, 1084257), (30, 722838), (36, 602365), (45, 481892), (60, 361419), (90, 240946), (180, 120473)]