21702285

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2579}}^1$

素因数の和:2618

約数の個数: 48

約数和(自身を含む): 43467840

約数和(自身を除く): 21765555

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 51, 55, 85, 99, 153, 165, 187, 255, 495, 561, 765, 935, 1683, 2579, 2805, 7737, 8415, 12895, 23211, 28369, 38685, 43843, 85107, 116055, 131529, 141845, 219215, 255321, 394587, 425535, 482273, 657645, 1276605, 1446819, 1972935, 2411365, 4340457, 7234095, 21702285]

約数ペア:

[(1, 21702285), (3, 7234095), (5, 4340457), (9, 2411365), (11, 1972935), (15, 1446819), (17, 1276605), (33, 657645), (45, 482273), (51, 425535), (55, 394587), (85, 255321), (99, 219215), (153, 141845), (165, 131529), (187, 116055), (255, 85107), (495, 43843), (561, 38685), (765, 28369), (935, 23211), (1683, 12895), (2579, 8415), (2805, 7737)]