21531240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59809}}^1$

素因数の和:59826

約数の個数: 48

約数和(自身を含む): 69977700

約数和(自身を除く): 48446460

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59809, 119618, 179427, 239236, 299045, 358854, 478472, 538281, 598090, 717708, 897135, 1076562, 1196180, 1435416, 1794270, 2153124, 2392360, 2691405, 3588540, 4306248, 5382810, 7177080, 10765620, 21531240]

約数ペア:

[(1, 21531240), (2, 10765620), (3, 7177080), (4, 5382810), (5, 4306248), (6, 3588540), (8, 2691405), (9, 2392360), (10, 2153124), (12, 1794270), (15, 1435416), (18, 1196180), (20, 1076562), (24, 897135), (30, 717708), (36, 598090), (40, 538281), (45, 478472), (60, 358854), (72, 299045), (90, 239236), (120, 179427), (180, 119618), (360, 59809)]