21245220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39343}}^1$

素因数の和:39361

約数の個数: 48

約数和(自身を含む): 66097920

約数和(自身を除く): 44852700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39343, 78686, 118029, 157372, 196715, 236058, 354087, 393430, 472116, 590145, 708174, 786860, 1062261, 1180290, 1416348, 1770435, 2124522, 2360580, 3540870, 4249044, 5311305, 7081740, 10622610, 21245220]

約数ペア:

[(1, 21245220), (2, 10622610), (3, 7081740), (4, 5311305), (5, 4249044), (6, 3540870), (9, 2360580), (10, 2124522), (12, 1770435), (15, 1416348), (18, 1180290), (20, 1062261), (27, 786860), (30, 708174), (36, 590145), (45, 472116), (54, 393430), (60, 354087), (90, 236058), (108, 196715), (135, 157372), (180, 118029), (270, 78686), (540, 39343)]