81643828

素因数分解:

$2^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{4621}}^1$

素因数の和:5263

約数の個数: 24

約数和(自身を含む): 163581824

約数和(自身を除く): 81937996

約数列:

[1, 2, 4, 7, 14, 28, 631, 1262, 2524, 4417, 4621, 8834, 9242, 17668, 18484, 32347, 64694, 129388, 2915851, 5831702, 11663404, 20410957, 40821914, 81643828]

約数ペア:

[(1, 81643828), (2, 40821914), (4, 20410957), (7, 11663404), (14, 5831702), (28, 2915851), (631, 129388), (1262, 64694), (2524, 32347), (4417, 18484), (4621, 17668), (8834, 9242)]