18927584

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 40515552

約数和(自身を除く): 21587968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 173, 208, 263, 346, 416, 526, 692, 1052, 1384, 2104, 2249, 2768, 3419, 4208, 4498, 5536, 6838, 8416, 8996, 13676, 17992, 27352, 35984, 45499, 54704, 71968, 90998, 109408, 181996, 363992, 591487, 727984, 1182974, 1455968, 2365948, 4731896, 9463792, 18927584]

約数ペア:

[(1, 18927584), (2, 9463792), (4, 4731896), (8, 2365948), (13, 1455968), (16, 1182974), (26, 727984), (32, 591487), (52, 363992), (104, 181996), (173, 109408), (208, 90998), (263, 71968), (346, 54704), (416, 45499), (526, 35984), (692, 27352), (1052, 17992), (1384, 13676), (2104, 8996), (2249, 8416), (2768, 6838), (3419, 5536), (4208, 4498)]