81538436

素因数分解:

$2^2\times 7^1\times {\mathrm{821}}^1\times {\mathrm{3547}}^1$

素因数の和:4379

約数の個数: 24

約数和(自身を含む): 163321536

約数和(自身を除く): 81783100

約数列:

[1, 2, 4, 7, 14, 28, 821, 1642, 3284, 3547, 5747, 7094, 11494, 14188, 22988, 24829, 49658, 99316, 2912087, 5824174, 11648348, 20384609, 40769218, 81538436]

約数ペア:

[(1, 81538436), (2, 40769218), (4, 20384609), (7, 11648348), (14, 5824174), (28, 2912087), (821, 99316), (1642, 49658), (3284, 24829), (3547, 22988), (5747, 14188), (7094, 11494)]