20311566

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 48128256

約数和(自身を除く): 27816690

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 43, 51, 66, 86, 102, 129, 187, 258, 374, 421, 473, 561, 731, 842, 946, 1122, 1263, 1419, 1462, 2193, 2526, 2838, 4386, 4631, 7157, 8041, 9262, 13893, 14314, 16082, 18103, 21471, 24123, 27786, 36206, 42942, 48246, 54309, 78727, 108618, 157454, 199133, 236181, 307751, 398266, 472362, 597399, 615502, 923253, 1194798, 1846506, 3385261, 6770522, 10155783, 20311566]

約数ペア:

[(1, 20311566), (2, 10155783), (3, 6770522), (6, 3385261), (11, 1846506), (17, 1194798), (22, 923253), (33, 615502), (34, 597399), (43, 472362), (51, 398266), (66, 307751), (86, 236181), (102, 199133), (129, 157454), (187, 108618), (258, 78727), (374, 54309), (421, 48246), (473, 42942), (561, 36206), (731, 27786), (842, 24123), (946, 21471), (1122, 18103), (1263, 16082), (1419, 14314), (1462, 13893), (2193, 9262), (2526, 8041), (2838, 7157), (4386, 4631)]