18028916

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1997}}^1$

素因数の和:2099

約数の個数: 24

約数和(自身を含む): 32951016

約数和(自身を除く): 14922100

約数列:

[1, 2, 4, 37, 61, 74, 122, 148, 244, 1997, 2257, 3994, 4514, 7988, 9028, 73889, 121817, 147778, 243634, 295556, 487268, 4507229, 9014458, 18028916]

約数ペア:

[(1, 18028916), (2, 9014458), (4, 4507229), (37, 487268), (61, 295556), (74, 243634), (122, 147778), (148, 121817), (244, 73889), (1997, 9028), (2257, 7988), (3994, 4514)]