20647524

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 49816256

約数和(自身を除く): 29168732

約数列:

[1, 2, 3, 4, 6, 12, 61, 67, 122, 134, 183, 201, 244, 268, 366, 402, 421, 732, 804, 842, 1263, 1684, 2526, 4087, 5052, 8174, 12261, 16348, 24522, 25681, 28207, 49044, 51362, 56414, 77043, 84621, 102724, 112828, 154086, 169242, 308172, 338484, 1720627, 3441254, 5161881, 6882508, 10323762, 20647524]

約数ペア:

[(1, 20647524), (2, 10323762), (3, 6882508), (4, 5161881), (6, 3441254), (12, 1720627), (61, 338484), (67, 308172), (122, 169242), (134, 154086), (183, 112828), (201, 102724), (244, 84621), (268, 77043), (366, 56414), (402, 51362), (421, 49044), (732, 28207), (804, 25681), (842, 24522), (1263, 16348), (1684, 12261), (2526, 8174), (4087, 5052)]