20857890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{695263}}^1$

素因数の和:695273

約数の個数: 16

約数和(自身を含む): 50059008

約数和(自身を除く): 29201118

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 695263, 1390526, 2085789, 3476315, 4171578, 6952630, 10428945, 20857890]

約数ペア:

[(1, 20857890), (2, 10428945), (3, 6952630), (5, 4171578), (6, 3476315), (10, 2085789), (15, 1390526), (30, 695263)]