18218728

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:127

約数の個数: 64

約数和(自身を含む): 39528000

約数和(自身を除く): 21309272

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 59, 88, 116, 118, 121, 232, 236, 242, 319, 472, 484, 638, 649, 968, 1276, 1298, 1331, 1711, 2552, 2596, 2662, 3422, 3509, 5192, 5324, 6844, 7018, 7139, 10648, 13688, 14036, 14278, 18821, 28072, 28556, 37642, 38599, 57112, 75284, 77198, 78529, 150568, 154396, 157058, 207031, 308792, 314116, 414062, 628232, 828124, 1656248, 2277341, 4554682, 9109364, 18218728]

約数ペア:

[(1, 18218728), (2, 9109364), (4, 4554682), (8, 2277341), (11, 1656248), (22, 828124), (29, 628232), (44, 414062), (58, 314116), (59, 308792), (88, 207031), (116, 157058), (118, 154396), (121, 150568), (232, 78529), (236, 77198), (242, 75284), (319, 57112), (472, 38599), (484, 37642), (638, 28556), (649, 28072), (968, 18821), (1276, 14278), (1298, 14036), (1331, 13688), (1711, 10648), (2552, 7139), (2596, 7018), (2662, 6844), (3422, 5324), (3509, 5192)]