21719866

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67453}}^1$

素因数の和:67485

約数の個数: 16

約数和(自身を含む): 38853504

約数和(自身を除く): 17133638

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67453, 134906, 472171, 944342, 1551419, 3102838, 10859933, 21719866]

約数ペア:

[(1, 21719866), (2, 10859933), (7, 3102838), (14, 1551419), (23, 944342), (46, 472171), (161, 134906), (322, 67453)]