2161527985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{416881}}^1$

素因数の和:416964

約数の個数: 16

約数和(自身を含む): 2791441872

約数和(自身を除く): 629913887

約数列:

[1, 5, 17, 61, 85, 305, 1037, 5185, 416881, 2084405, 7086977, 25429741, 35434885, 127148705, 432305597, 2161527985]

約数ペア:

[(1, 2161527985), (5, 432305597), (17, 127148705), (61, 35434885), (85, 25429741), (305, 7086977), (1037, 2084405), (5185, 416881)]