19839365

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6229}}^1$

素因数の和:6261

約数の個数: 24

約数和(自身を含む): 29829240

約数和(自身を除く): 9989875

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6229, 31145, 43603, 80977, 218015, 305221, 404885, 566839, 1526105, 2834195, 3967873, 19839365]

約数ペア:

[(1, 19839365), (5, 3967873), (7, 2834195), (13, 1526105), (35, 566839), (49, 404885), (65, 305221), (91, 218015), (245, 80977), (455, 43603), (637, 31145), (3185, 6229)]