18996888

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{461}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 50893920

約数和(自身を除く): 31897032

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 101, 102, 136, 202, 204, 303, 404, 408, 461, 606, 808, 922, 1212, 1383, 1717, 1844, 2424, 2766, 3434, 3688, 5151, 5532, 6868, 7837, 10302, 11064, 13736, 15674, 20604, 23511, 31348, 41208, 46561, 47022, 62696, 93122, 94044, 139683, 186244, 188088, 279366, 372488, 558732, 791537, 1117464, 1583074, 2374611, 3166148, 4749222, 6332296, 9498444, 18996888]

約数ペア:

[(1, 18996888), (2, 9498444), (3, 6332296), (4, 4749222), (6, 3166148), (8, 2374611), (12, 1583074), (17, 1117464), (24, 791537), (34, 558732), (51, 372488), (68, 279366), (101, 188088), (102, 186244), (136, 139683), (202, 94044), (204, 93122), (303, 62696), (404, 47022), (408, 46561), (461, 41208), (606, 31348), (808, 23511), (922, 20604), (1212, 15674), (1383, 13736), (1717, 11064), (1844, 10302), (2424, 7837), (2766, 6868), (3434, 5532), (3688, 5151)]