21867680

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1409}}^1$

素因数の和:1521

約数の個数: 48

約数和(自身を含む): 52232040

約数和(自身を除く): 30364360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1409, 1552, 1940, 2818, 3104, 3880, 5636, 7045, 7760, 11272, 14090, 15520, 22544, 28180, 45088, 56360, 112720, 136673, 225440, 273346, 546692, 683365, 1093384, 1366730, 2186768, 2733460, 4373536, 5466920, 10933840, 21867680]

約数ペア:

[(1, 21867680), (2, 10933840), (4, 5466920), (5, 4373536), (8, 2733460), (10, 2186768), (16, 1366730), (20, 1093384), (32, 683365), (40, 546692), (80, 273346), (97, 225440), (160, 136673), (194, 112720), (388, 56360), (485, 45088), (776, 28180), (970, 22544), (1409, 15520), (1552, 14090), (1940, 11272), (2818, 7760), (3104, 7045), (3880, 5636)]