19985824

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{20147}}^1$

素因数の和:20188

約数の個数: 24

約数和(自身を含む): 40618368

約数和(自身を除く): 20632544

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 20147, 40294, 80588, 161176, 322352, 624557, 644704, 1249114, 2498228, 4996456, 9992912, 19985824]

約数ペア:

[(1, 19985824), (2, 9992912), (4, 4996456), (8, 2498228), (16, 1249114), (31, 644704), (32, 624557), (62, 322352), (124, 161176), (248, 80588), (496, 40294), (992, 20147)]