218973746

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{20507}}^1$

素因数の和:20809

約数の個数: 16

約数和(自身を含む): 346995360

約数和(自身を除く): 128021614

約数列:

[1, 2, 19, 38, 281, 562, 5339, 10678, 20507, 41014, 389633, 779266, 5762467, 11524934, 109486873, 218973746]

約数ペア:

[(1, 218973746), (2, 109486873), (19, 11524934), (38, 5762467), (281, 779266), (562, 389633), (5339, 41014), (10678, 20507)]