20457942

素因数分解:

$2^1\times 3^1\times {\mathrm{173}}^1\times {\mathrm{19709}}^1$

素因数の和:19887

約数の個数: 16

約数和(自身を含む): 41154480

約数和(自身を除く): 20696538

約数列:

[1, 2, 3, 6, 173, 346, 519, 1038, 19709, 39418, 59127, 118254, 3409657, 6819314, 10228971, 20457942]

約数ペア:

[(1, 20457942), (2, 10228971), (3, 6819314), (6, 3409657), (173, 118254), (346, 59127), (519, 39418), (1038, 19709)]