18687704

素因数分解:

$2^3\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1087}}^1$

素因数の和:1407

約数の個数: 32

約数和(自身を含む): 40212480

約数和(自身を除く): 21524776

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 307, 614, 1087, 1228, 2149, 2174, 2456, 4298, 4348, 7609, 8596, 8696, 15218, 17192, 30436, 60872, 333709, 667418, 1334836, 2335963, 2669672, 4671926, 9343852, 18687704]

約数ペア:

[(1, 18687704), (2, 9343852), (4, 4671926), (7, 2669672), (8, 2335963), (14, 1334836), (28, 667418), (56, 333709), (307, 60872), (614, 30436), (1087, 17192), (1228, 15218), (2149, 8696), (2174, 8596), (2456, 7609), (4298, 4348)]