19428073

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 22784256

約数和(自身を除く): 3356183

約数列:

[1, 7, 61, 173, 263, 427, 1211, 1841, 10553, 16043, 45499, 73871, 112301, 318493, 2775439, 19428073]

約数ペア:

[(1, 19428073), (7, 2775439), (61, 318493), (173, 112301), (263, 73871), (427, 45499), (1211, 16043), (1841, 10553)]