21525904

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43399}}^1$

素因数の和:43438

約数の個数: 20

約数和(自身を含む): 43052800

約数和(自身を除く): 21526896

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43399, 86798, 173596, 347192, 694384, 1345369, 2690738, 5381476, 10762952, 21525904]

約数ペア:

[(1, 21525904), (2, 10762952), (4, 5381476), (8, 2690738), (16, 1345369), (31, 694384), (62, 347192), (124, 173596), (248, 86798), (496, 43399)]