18994508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21487}}^1$

素因数の和:21521

約数の個数: 24

約数和(自身を含む): 37904832

約数和(自身を除く): 18910324

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 21487, 42974, 85948, 279331, 365279, 558662, 730558, 1117324, 1461116, 4748627, 9497254, 18994508]

約数ペア:

[(1, 18994508), (2, 9497254), (4, 4748627), (13, 1461116), (17, 1117324), (26, 730558), (34, 558662), (52, 365279), (68, 279331), (221, 85948), (442, 42974), (884, 21487)]