21530771353

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{1163}}^1\times {\mathrm{29063}}^1$

素因数の和:30253

約数の個数: 24

約数和(自身を含む): 26996735808

約数和(自身を除く): 5465964455

約数列:

[1, 7, 13, 49, 91, 637, 1163, 8141, 15119, 29063, 56987, 105833, 203441, 377819, 740831, 1424087, 2644733, 18513131, 33800269, 236601883, 439403497, 1656213181, 3075824479, 21530771353]

約数ペア:

[(1, 21530771353), (7, 3075824479), (13, 1656213181), (49, 439403497), (91, 236601883), (637, 33800269), (1163, 18513131), (8141, 2644733), (15119, 1424087), (29063, 740831), (56987, 377819), (105833, 203441)]