13219615

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 16338240

約数和(自身を除く): 3118625

約数列:

[1, 5, 61, 89, 305, 445, 487, 2435, 5429, 27145, 29707, 43343, 148535, 216715, 2643923, 13219615]

約数ペア:

[(1, 13219615), (5, 2643923), (61, 216715), (89, 148535), (305, 43343), (445, 29707), (487, 27145), (2435, 5429)]