18716336

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:429

約数の個数: 40

約数和(自身を含む): 37643424

約数和(自身を除く): 18927088

約数列:

[1, 2, 4, 8, 16, 41, 82, 103, 164, 206, 277, 328, 412, 554, 656, 824, 1108, 1648, 2216, 4223, 4432, 8446, 11357, 16892, 22714, 28531, 33784, 45428, 57062, 67568, 90856, 114124, 181712, 228248, 456496, 1169771, 2339542, 4679084, 9358168, 18716336]

約数ペア:

[(1, 18716336), (2, 9358168), (4, 4679084), (8, 2339542), (16, 1169771), (41, 456496), (82, 228248), (103, 181712), (164, 114124), (206, 90856), (277, 67568), (328, 57062), (412, 45428), (554, 33784), (656, 28531), (824, 22714), (1108, 16892), (1648, 11357), (2216, 8446), (4223, 4432)]