19697979

素因数分解:

$3^1\times 7^1\times {\mathrm{751}}^1\times {\mathrm{1249}}^1$

素因数の和:2010

約数の個数: 16

約数和(自身を含む): 30080000

約数和(自身を除く): 10382021

約数列:

[1, 3, 7, 21, 751, 1249, 2253, 3747, 5257, 8743, 15771, 26229, 937999, 2813997, 6565993, 19697979]

約数ペア:

[(1, 19697979), (3, 6565993), (7, 2813997), (21, 937999), (751, 26229), (1249, 15771), (2253, 8743), (3747, 5257)]