18864558

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:617

約数の個数: 48

約数和(自身を含む): 42962400

約数和(自身を除く): 24097842

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 71, 87, 142, 174, 213, 261, 426, 509, 522, 639, 1018, 1278, 1527, 2059, 3054, 4118, 4581, 6177, 9162, 12354, 14761, 18531, 29522, 36139, 37062, 44283, 72278, 88566, 108417, 132849, 216834, 265698, 325251, 650502, 1048031, 2096062, 3144093, 6288186, 9432279, 18864558]

約数ペア:

[(1, 18864558), (2, 9432279), (3, 6288186), (6, 3144093), (9, 2096062), (18, 1048031), (29, 650502), (58, 325251), (71, 265698), (87, 216834), (142, 132849), (174, 108417), (213, 88566), (261, 72278), (426, 44283), (509, 37062), (522, 36139), (639, 29522), (1018, 18531), (1278, 14761), (1527, 12354), (2059, 9162), (3054, 6177), (4118, 4581)]