21273354

素因数分解:

$2^1\times 3^4\times {\mathrm{131317}}^1$

素因数の和:131331

約数の個数: 20

約数和(自身を含む): 47668434

約数和(自身を除く): 26395080

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131317, 262634, 393951, 787902, 1181853, 2363706, 3545559, 7091118, 10636677, 21273354]

約数ペア:

[(1, 21273354), (2, 10636677), (3, 7091118), (6, 3545559), (9, 2363706), (18, 1181853), (27, 787902), (54, 393951), (81, 262634), (162, 131317)]