20369921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 24093888

約数和(自身を除く): 3723967

約数列:

[1, 11, 13, 143, 181, 787, 1991, 2353, 8657, 10231, 25883, 112541, 142447, 1566917, 1851811, 20369921]

約数ペア:

[(1, 20369921), (11, 1851811), (13, 1566917), (143, 142447), (181, 112541), (787, 25883), (1991, 10231), (2353, 8657)]