19873965

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18661}}^1$

素因数の和:18740

約数の個数: 16

約数和(自身を含む): 32247936

約数和(自身を除く): 12373971

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 18661, 55983, 93305, 279915, 1324931, 3974793, 6624655, 19873965]

約数ペア:

[(1, 19873965), (3, 6624655), (5, 3974793), (15, 1324931), (71, 279915), (213, 93305), (355, 55983), (1065, 18661)]