19967519

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:527

約数の個数: 24

約数和(自身を含む): 24665472

約数和(自身を除く): 4697953

約数列:

[1, 11, 13, 23, 143, 169, 253, 299, 467, 1859, 3289, 3887, 5137, 6071, 10741, 42757, 66781, 78923, 118151, 139633, 868153, 1535963, 1815229, 19967519]

約数ペア:

[(1, 19967519), (11, 1815229), (13, 1535963), (23, 868153), (143, 139633), (169, 118151), (253, 78923), (299, 66781), (467, 42757), (1859, 10741), (3289, 6071), (3887, 5137)]