21581908

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{7741}}^1$

素因数の和:7803

約数の個数: 24

約数和(自身を含む): 40970664

約数和(自身を除く): 19388756

約数列:

[1, 2, 4, 17, 34, 41, 68, 82, 164, 697, 1394, 2788, 7741, 15482, 30964, 131597, 263194, 317381, 526388, 634762, 1269524, 5395477, 10790954, 21581908]

約数ペア:

[(1, 21581908), (2, 10790954), (4, 5395477), (17, 1269524), (34, 634762), (41, 526388), (68, 317381), (82, 263194), (164, 131597), (697, 30964), (1394, 15482), (2788, 7741)]