20005356021

素因数分解:

$3^1\times 7^1\times {\mathrm{70981}}^1\times {\mathrm{13421}}^1$

素因数の和:84412

約数の個数: 16

約数和(自身を含む): 30487052928

約数和(自身を除く): 10481696907

約数列:

[1, 3, 7, 21, 13421, 40263, 70981, 93947, 212943, 281841, 496867, 1490601, 952636001, 2857908003, 6668452007, 20005356021]

約数ペア:

[(1, 20005356021), (3, 6668452007), (7, 2857908003), (21, 952636001), (13421, 1490601), (40263, 496867), (70981, 281841), (93947, 212943)]