18677984

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{761}}^1$

素因数の和:843

約数の個数: 48

約数和(自身を含む): 40325040

約数和(自身を除く): 21647056

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 104, 118, 208, 236, 416, 472, 761, 767, 944, 1522, 1534, 1888, 3044, 3068, 6088, 6136, 9893, 12176, 12272, 19786, 24352, 24544, 39572, 44899, 79144, 89798, 158288, 179596, 316576, 359192, 583687, 718384, 1167374, 1436768, 2334748, 4669496, 9338992, 18677984]

約数ペア:

[(1, 18677984), (2, 9338992), (4, 4669496), (8, 2334748), (13, 1436768), (16, 1167374), (26, 718384), (32, 583687), (52, 359192), (59, 316576), (104, 179596), (118, 158288), (208, 89798), (236, 79144), (416, 44899), (472, 39572), (761, 24544), (767, 24352), (944, 19786), (1522, 12272), (1534, 12176), (1888, 9893), (3044, 6136), (3068, 6088)]