21980973

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{12611}}^1$

素因数の和:12704

約数の個数: 16

約数和(自身を含む): 33901056

約数和(自身を除く): 11920083

約数列:

[1, 3, 7, 21, 83, 249, 581, 1743, 12611, 37833, 88277, 264831, 1046713, 3140139, 7326991, 21980973]

約数ペア:

[(1, 21980973), (3, 7326991), (7, 3140139), (21, 1046713), (83, 264831), (249, 88277), (581, 37833), (1743, 12611)]