19157579

素因数分解:

$7^4\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 20

約数和(自身を含む): 22856160

約数和(自身を除く): 3698581

約数列:

[1, 7, 49, 79, 101, 343, 553, 707, 2401, 3871, 4949, 7979, 27097, 34643, 55853, 189679, 242501, 390971, 2736797, 19157579]

約数ペア:

[(1, 19157579), (7, 2736797), (49, 390971), (79, 242501), (101, 189679), (343, 55853), (553, 34643), (707, 27097), (2401, 7979), (3871, 4949)]