21236580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13109}}^1$

素因数の和:13130

約数の個数: 60

約数和(自身を含む): 66625020

約数和(自身を除く): 45388440

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, 13109, 26218, 39327, 52436, 65545, 78654, 117981, 131090, 157308, 196635, 235962, 262180, 353943, 393270, 471924, 589905, 707886, 786540, 1061829, 1179810, 1415772, 1769715, 2123658, 2359620, 3539430, 4247316, 5309145, 7078860, 10618290, 21236580]

約数ペア:

[(1, 21236580), (2, 10618290), (3, 7078860), (4, 5309145), (5, 4247316), (6, 3539430), (9, 2359620), (10, 2123658), (12, 1769715), (15, 1415772), (18, 1179810), (20, 1061829), (27, 786540), (30, 707886), (36, 589905), (45, 471924), (54, 393270), (60, 353943), (81, 262180), (90, 235962), (108, 196635), (135, 157308), (162, 131090), (180, 117981), (270, 78654), (324, 65545), (405, 52436), (540, 39327), (810, 26218), (1620, 13109)]