18063968

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{251}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 38673936

約数和(自身を除く): 20609968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 173, 208, 251, 346, 416, 502, 692, 1004, 1384, 2008, 2249, 2768, 3263, 4016, 4498, 5536, 6526, 8032, 8996, 13052, 17992, 26104, 35984, 43423, 52208, 71968, 86846, 104416, 173692, 347384, 564499, 694768, 1128998, 1389536, 2257996, 4515992, 9031984, 18063968]

約数ペア:

[(1, 18063968), (2, 9031984), (4, 4515992), (8, 2257996), (13, 1389536), (16, 1128998), (26, 694768), (32, 564499), (52, 347384), (104, 173692), (173, 104416), (208, 86846), (251, 71968), (346, 52208), (416, 43423), (502, 35984), (692, 26104), (1004, 17992), (1384, 13052), (2008, 8996), (2249, 8032), (2768, 6526), (3263, 5536), (4016, 4498)]