81881324

素因数分解:

$2^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{9403}}^1$

素因数の和:9725

約数の個数: 24

約数和(自身を含む): 164306688

約数和(自身を除く): 82425364

約数列:

[1, 2, 4, 7, 14, 28, 311, 622, 1244, 2177, 4354, 8708, 9403, 18806, 37612, 65821, 131642, 263284, 2924333, 5848666, 11697332, 20470331, 40940662, 81881324]

約数ペア:

[(1, 81881324), (2, 40940662), (4, 20470331), (7, 11697332), (14, 5848666), (28, 2924333), (311, 263284), (622, 131642), (1244, 65821), (2177, 37612), (4354, 18806), (8708, 9403)]