661243132

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{406169}}^1$

素因数の和:406221

約数の個数: 24

約数和(自身を含む): 1296494640

約数和(自身を除く): 635251508

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 406169, 812338, 1624676, 4467859, 8935718, 15028253, 17871436, 30056506, 60113012, 165310783, 330621566, 661243132]

約数ペア:

[(1, 661243132), (2, 330621566), (4, 165310783), (11, 60113012), (22, 30056506), (37, 17871436), (44, 15028253), (74, 8935718), (148, 4467859), (407, 1624676), (814, 812338), (1628, 406169)]