21538388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{827}}^1$

素因数の和:1231

約数の個数: 24

約数和(自身を含む): 40061952

約数和(自身を除く): 18523564

約数列:

[1, 2, 4, 17, 34, 68, 383, 766, 827, 1532, 1654, 3308, 6511, 13022, 14059, 26044, 28118, 56236, 316741, 633482, 1266964, 5384597, 10769194, 21538388]

約数ペア:

[(1, 21538388), (2, 10769194), (4, 5384597), (17, 1266964), (34, 633482), (68, 316741), (383, 56236), (766, 28118), (827, 26044), (1532, 14059), (1654, 13022), (3308, 6511)]