18604664

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{619}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 39971400

約数和(自身を除く): 21366736

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 289, 442, 578, 619, 884, 1156, 1238, 1768, 2312, 2476, 3757, 4952, 7514, 8047, 10523, 15028, 16094, 21046, 30056, 32188, 42092, 64376, 84184, 136799, 178891, 273598, 357782, 547196, 715564, 1094392, 1431128, 2325583, 4651166, 9302332, 18604664]

約数ペア:

[(1, 18604664), (2, 9302332), (4, 4651166), (8, 2325583), (13, 1431128), (17, 1094392), (26, 715564), (34, 547196), (52, 357782), (68, 273598), (104, 178891), (136, 136799), (221, 84184), (289, 64376), (442, 42092), (578, 32188), (619, 30056), (884, 21046), (1156, 16094), (1238, 15028), (1768, 10523), (2312, 8047), (2476, 7514), (3757, 4952)]