21004604

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{347}}^1\times {\mathrm{409}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 37952880

約数和(自身を除く): 16948276

約数列:

[1, 2, 4, 37, 74, 148, 347, 409, 694, 818, 1388, 1636, 12839, 15133, 25678, 30266, 51356, 60532, 141923, 283846, 567692, 5251151, 10502302, 21004604]

約数ペア:

[(1, 21004604), (2, 10502302), (4, 5251151), (37, 567692), (74, 283846), (148, 141923), (347, 60532), (409, 51356), (694, 30266), (818, 25678), (1388, 15133), (1636, 12839)]