18939908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{797}}^1$

素因数の和:1271

約数の個数: 24

約数和(自身を含む): 35817432

約数和(自身を除く): 16877524

約数列:

[1, 2, 4, 13, 26, 52, 457, 797, 914, 1594, 1828, 3188, 5941, 10361, 11882, 20722, 23764, 41444, 364229, 728458, 1456916, 4734977, 9469954, 18939908]

約数ペア:

[(1, 18939908), (2, 9469954), (4, 4734977), (13, 1456916), (26, 728458), (52, 364229), (457, 41444), (797, 23764), (914, 20722), (1594, 11882), (1828, 10361), (3188, 5941)]