19791475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{911}}^1$

素因数の和:1011

約数の個数: 24

約数和(自身を含む): 27141120

約数和(自身を除く): 7349645

約数列:

[1, 5, 11, 25, 55, 79, 275, 395, 869, 911, 1975, 4345, 4555, 10021, 21725, 22775, 50105, 71969, 250525, 359845, 791659, 1799225, 3958295, 19791475]

約数ペア:

[(1, 19791475), (5, 3958295), (11, 1799225), (25, 791659), (55, 359845), (79, 250525), (275, 71969), (395, 50105), (869, 22775), (911, 21725), (1975, 10021), (4345, 4555)]