18949866

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:527

約数の個数: 64

約数和(自身を含む): 44706816

約数和(自身を除く): 25756950

約数列:

[1, 2, 3, 6, 13, 17, 26, 31, 34, 39, 51, 62, 78, 93, 102, 186, 221, 403, 442, 461, 527, 663, 806, 922, 1054, 1209, 1326, 1383, 1581, 2418, 2766, 3162, 5993, 6851, 7837, 11986, 13702, 14291, 15674, 17979, 20553, 23511, 28582, 35958, 41106, 42873, 47022, 85746, 101881, 185783, 203762, 242947, 305643, 371566, 485894, 557349, 611286, 728841, 1114698, 1457682, 3158311, 6316622, 9474933, 18949866]

約数ペア:

[(1, 18949866), (2, 9474933), (3, 6316622), (6, 3158311), (13, 1457682), (17, 1114698), (26, 728841), (31, 611286), (34, 557349), (39, 485894), (51, 371566), (62, 305643), (78, 242947), (93, 203762), (102, 185783), (186, 101881), (221, 85746), (403, 47022), (442, 42873), (461, 41106), (527, 35958), (663, 28582), (806, 23511), (922, 20553), (1054, 17979), (1209, 15674), (1326, 14291), (1383, 13702), (1581, 11986), (2418, 7837), (2766, 6851), (3162, 5993)]