20421018

素因数分解:

$2^1\times 3^3\times {\mathrm{378167}}^1$

素因数の和:378178

約数の個数: 16

約数和(自身を含む): 45380160

約数和(自身を除く): 24959142

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 378167, 756334, 1134501, 2269002, 3403503, 6807006, 10210509, 20421018]

約数ペア:

[(1, 20421018), (2, 10210509), (3, 6807006), (6, 3403503), (9, 2269002), (18, 1134501), (27, 756334), (54, 378167)]