20917446

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 49061376

約数和(自身を除く): 28143930

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 103, 181, 187, 206, 309, 362, 374, 543, 561, 618, 1086, 1122, 1133, 1751, 1991, 2266, 3077, 3399, 3502, 3982, 5253, 5973, 6154, 6798, 9231, 10506, 11946, 18462, 18643, 19261, 33847, 37286, 38522, 55929, 57783, 67694, 101541, 111858, 115566, 203082, 205073, 316931, 410146, 615219, 633862, 950793, 1230438, 1901586, 3486241, 6972482, 10458723, 20917446]

約数ペア:

[(1, 20917446), (2, 10458723), (3, 6972482), (6, 3486241), (11, 1901586), (17, 1230438), (22, 950793), (33, 633862), (34, 615219), (51, 410146), (66, 316931), (102, 205073), (103, 203082), (181, 115566), (187, 111858), (206, 101541), (309, 67694), (362, 57783), (374, 55929), (543, 38522), (561, 37286), (618, 33847), (1086, 19261), (1122, 18643), (1133, 18462), (1751, 11946), (1991, 10506), (2266, 9231), (3077, 6798), (3399, 6154), (3502, 5973), (3982, 5253)]