20011616

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{20173}}^1$

素因数の和:20214

約数の個数: 24

約数和(自身を含む): 40670784

約数和(自身を除く): 20659168

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 20173, 40346, 80692, 161384, 322768, 625363, 645536, 1250726, 2501452, 5002904, 10005808, 20011616]

約数ペア:

[(1, 20011616), (2, 10005808), (4, 5002904), (8, 2501452), (16, 1250726), (31, 645536), (32, 625363), (62, 322768), (124, 161384), (248, 80692), (496, 40346), (992, 20173)]