21221718

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{505279}}^1$

素因数の和:505291

約数の個数: 16

約数和(自身を含む): 48506880

約数和(自身を除く): 27285162

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 505279, 1010558, 1515837, 3031674, 3536953, 7073906, 10610859, 21221718]

約数ペア:

[(1, 21221718), (2, 10610859), (3, 7073906), (6, 3536953), (7, 3031674), (14, 1515837), (21, 1010558), (42, 505279)]