20689995

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59971}}^1$

素因数の和:60002

約数の個数: 16

約数和(自身を含む): 34543872

約数和(自身を除く): 13853877

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 59971, 179913, 299855, 899565, 1379333, 4137999, 6896665, 20689995]

約数ペア:

[(1, 20689995), (3, 6896665), (5, 4137999), (15, 1379333), (23, 899565), (69, 299855), (115, 179913), (345, 59971)]