19427955

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{9887}}^1$

素因数の和:10026

約数の個数: 16

約数和(自身を含む): 31325184

約数和(自身を除く): 11897229

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 9887, 29661, 49435, 148305, 1295197, 3885591, 6475985, 19427955]

約数ペア:

[(1, 19427955), (3, 6475985), (5, 3885591), (15, 1295197), (131, 148305), (393, 49435), (655, 29661), (1965, 9887)]