18059984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{991}}^1$

素因数の和:1083

約数の個数: 40

約数和(自身を含む): 37640448

約数和(自身を除く): 19580464

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 536, 991, 1072, 1139, 1982, 2278, 3964, 4556, 7928, 9112, 15856, 16847, 18224, 33694, 66397, 67388, 132794, 134776, 265588, 269552, 531176, 1062352, 1128749, 2257498, 4514996, 9029992, 18059984]

約数ペア:

[(1, 18059984), (2, 9029992), (4, 4514996), (8, 2257498), (16, 1128749), (17, 1062352), (34, 531176), (67, 269552), (68, 265588), (134, 134776), (136, 132794), (268, 67388), (272, 66397), (536, 33694), (991, 18224), (1072, 16847), (1139, 15856), (1982, 9112), (2278, 7928), (3964, 4556)]