18208904

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 42716160

約数和(自身を除く): 24507256

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 56, 62, 68, 119, 124, 136, 217, 238, 248, 434, 476, 527, 617, 868, 952, 1054, 1234, 1736, 2108, 2468, 3689, 4216, 4319, 4936, 7378, 8638, 10489, 14756, 17276, 19127, 20978, 29512, 34552, 38254, 41956, 73423, 76508, 83912, 133889, 146846, 153016, 267778, 293692, 325159, 535556, 587384, 650318, 1071112, 1300636, 2276113, 2601272, 4552226, 9104452, 18208904]

約数ペア:

[(1, 18208904), (2, 9104452), (4, 4552226), (7, 2601272), (8, 2276113), (14, 1300636), (17, 1071112), (28, 650318), (31, 587384), (34, 535556), (56, 325159), (62, 293692), (68, 267778), (119, 153016), (124, 146846), (136, 133889), (217, 83912), (238, 76508), (248, 73423), (434, 41956), (476, 38254), (527, 34552), (617, 29512), (868, 20978), (952, 19127), (1054, 17276), (1234, 14756), (1736, 10489), (2108, 8638), (2468, 7378), (3689, 4936), (4216, 4319)]