21176356

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1303}}^1$

素因数の和:1563

約数の個数: 24

約数和(自身を含む): 39432960

約数和(自身を除く): 18256604

約数列:

[1, 2, 4, 17, 34, 68, 239, 478, 956, 1303, 2606, 4063, 5212, 8126, 16252, 22151, 44302, 88604, 311417, 622834, 1245668, 5294089, 10588178, 21176356]

約数ペア:

[(1, 21176356), (2, 10588178), (4, 5294089), (17, 1245668), (34, 622834), (68, 311417), (239, 88604), (478, 44302), (956, 22151), (1303, 16252), (2606, 8126), (4063, 5212)]