20368335

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1559}}^1$

素因数の和:1647

約数の個数: 32

約数和(自身を含む): 35642880

約数和(自身を除く): 15274545

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 195, 201, 335, 871, 1005, 1559, 2613, 4355, 4677, 7795, 13065, 20267, 23385, 60801, 101335, 104453, 304005, 313359, 522265, 1357889, 1566795, 4073667, 6789445, 20368335]

約数ペア:

[(1, 20368335), (3, 6789445), (5, 4073667), (13, 1566795), (15, 1357889), (39, 522265), (65, 313359), (67, 304005), (195, 104453), (201, 101335), (335, 60801), (871, 23385), (1005, 20267), (1559, 13065), (2613, 7795), (4355, 4677)]