19397575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 25640720

約数和(自身を除く): 6243145

約数列:

[1, 5, 19, 25, 95, 97, 421, 475, 485, 1843, 2105, 2425, 7999, 9215, 10525, 39995, 40837, 46075, 199975, 204185, 775903, 1020925, 3879515, 19397575]

約数ペア:

[(1, 19397575), (5, 3879515), (19, 1020925), (25, 775903), (95, 204185), (97, 199975), (421, 46075), (475, 40837), (485, 39995), (1843, 10525), (2105, 9215), (2425, 7999)]