21417404

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{172721}}^1$

素因数の和:172756

約数の個数: 12

約数和(自身を含む): 38689728

約数和(自身を除く): 17272324

約数列:

[1, 2, 4, 31, 62, 124, 172721, 345442, 690884, 5354351, 10708702, 21417404]

約数ペア:

[(1, 21417404), (2, 10708702), (4, 5354351), (31, 690884), (62, 345442), (124, 172721)]