21187270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9587}}^1$

素因数の和:9624

約数の個数: 32

約数和(自身を含む): 43491168

約数和(自身を除く): 22303898

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9587, 19174, 47935, 95870, 124631, 162979, 249262, 325958, 623155, 814895, 1246310, 1629790, 2118727, 4237454, 10593635, 21187270]

約数ペア:

[(1, 21187270), (2, 10593635), (5, 4237454), (10, 2118727), (13, 1629790), (17, 1246310), (26, 814895), (34, 623155), (65, 325958), (85, 249262), (130, 162979), (170, 124631), (221, 95870), (442, 47935), (1105, 19174), (2210, 9587)]