61215916

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{439}}^1\times {\mathrm{491}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 109105920

約数和(自身を除く): 47890004

約数列:

[1, 2, 4, 71, 142, 284, 439, 491, 878, 982, 1756, 1964, 31169, 34861, 62338, 69722, 124676, 139444, 215549, 431098, 862196, 15303979, 30607958, 61215916]

約数ペア:

[(1, 61215916), (2, 30607958), (4, 15303979), (71, 862196), (142, 431098), (284, 215549), (439, 139444), (491, 124676), (878, 69722), (982, 62338), (1756, 34861), (1964, 31169)]