81976279

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 108633600

約数和(自身を除く): 26657321

約数列:

[1, 7, 11, 19, 77, 133, 137, 209, 409, 959, 1463, 1507, 2603, 2863, 4499, 7771, 10549, 18221, 28633, 31493, 54397, 56033, 85481, 200431, 392231, 598367, 616363, 1064627, 4314541, 7452389, 11710897, 81976279]

約数ペア:

[(1, 81976279), (7, 11710897), (11, 7452389), (19, 4314541), (77, 1064627), (133, 616363), (137, 598367), (209, 392231), (409, 200431), (959, 85481), (1463, 56033), (1507, 54397), (2603, 31493), (2863, 28633), (4499, 18221), (7771, 10549)]