21100706

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 38610432

約数和(自身を除く): 17509726

約数列:

[1, 2, 11, 17, 22, 23, 34, 46, 121, 187, 223, 242, 253, 374, 391, 446, 506, 782, 2057, 2453, 2783, 3791, 4114, 4301, 4906, 5129, 5566, 7582, 8602, 10258, 26983, 41701, 47311, 53966, 56419, 83402, 87193, 94622, 112838, 174386, 458711, 620609, 917422, 959123, 1241218, 1918246, 10550353, 21100706]

約数ペア:

[(1, 21100706), (2, 10550353), (11, 1918246), (17, 1241218), (22, 959123), (23, 917422), (34, 620609), (46, 458711), (121, 174386), (187, 112838), (223, 94622), (242, 87193), (253, 83402), (374, 56419), (391, 53966), (446, 47311), (506, 41701), (782, 26983), (2057, 10258), (2453, 8602), (2783, 7582), (3791, 5566), (4114, 5129), (4301, 4906)]