21197129208

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{113131}}^1$

素因数の和:113388

約数の個数: 64

約数和(自身を含む): 54683483520

約数和(自身を除く): 33486354312

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 74, 111, 148, 211, 222, 296, 422, 444, 633, 844, 888, 1266, 1688, 2532, 5064, 7807, 15614, 23421, 31228, 46842, 62456, 93684, 113131, 187368, 226262, 339393, 452524, 678786, 905048, 1357572, 2715144, 4185847, 8371694, 12557541, 16743388, 23870641, 25115082, 33486776, 47741282, 50230164, 71611923, 95482564, 100460328, 143223846, 190965128, 286447692, 572895384, 883213717, 1766427434, 2649641151, 3532854868, 5299282302, 7065709736, 10598564604, 21197129208]

約数ペア:

[(1, 21197129208), (2, 10598564604), (3, 7065709736), (4, 5299282302), (6, 3532854868), (8, 2649641151), (12, 1766427434), (24, 883213717), (37, 572895384), (74, 286447692), (111, 190965128), (148, 143223846), (211, 100460328), (222, 95482564), (296, 71611923), (422, 50230164), (444, 47741282), (633, 33486776), (844, 25115082), (888, 23870641), (1266, 16743388), (1688, 12557541), (2532, 8371694), (5064, 4185847), (7807, 2715144), (15614, 1357572), (23421, 905048), (31228, 678786), (46842, 452524), (62456, 339393), (93684, 226262), (113131, 187368)]