18738149108

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1040777}}^1$

素因数の和:1041431

約数の個数: 24

約数和(自身を含む): 37534617792

約数和(自身を除く): 18796468684

約数列:

[1, 2, 4, 7, 14, 28, 643, 1286, 2572, 4501, 9002, 18004, 1040777, 2081554, 4163108, 7285439, 14570878, 29141756, 669219611, 1338439222, 2676878444, 4684537277, 9369074554, 18738149108]

約数ペア:

[(1, 18738149108), (2, 9369074554), (4, 4684537277), (7, 2676878444), (14, 1338439222), (28, 669219611), (643, 29141756), (1286, 14570878), (2572, 7285439), (4501, 4163108), (9002, 2081554), (18004, 1040777)]