19986218

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{8867}}^1$

素因数の和:8906

約数の個数: 24

約数和(自身を含む): 36394272

約数和(自身を除く): 16408054

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 1127, 2254, 8867, 17734, 62069, 124138, 203941, 407882, 434483, 868966, 1427587, 2855174, 9993109, 19986218]

約数ペア:

[(1, 19986218), (2, 9993109), (7, 2855174), (14, 1427587), (23, 868966), (46, 434483), (49, 407882), (98, 203941), (161, 124138), (322, 62069), (1127, 17734), (2254, 8867)]