7860021

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 11682720

約数和(自身を除く): 3822699

約数列:

[1, 3, 13, 37, 39, 111, 169, 419, 481, 507, 1257, 1443, 5447, 6253, 15503, 16341, 18759, 46509, 70811, 201539, 212433, 604617, 2620007, 7860021]

約数ペア:

[(1, 7860021), (3, 2620007), (13, 604617), (37, 212433), (39, 201539), (111, 70811), (169, 46509), (419, 18759), (481, 16341), (507, 15503), (1257, 6253), (1443, 5447)]