78899261

素因数分解:

$7^4\times {\mathrm{17}}^1\times {\mathrm{1933}}^1$

素因数の和:1978

約数の個数: 20

約数和(自身を含む): 97508412

約数和(自身を除く): 18609151

約数列:

[1, 7, 17, 49, 119, 343, 833, 1933, 2401, 5831, 13531, 32861, 40817, 94717, 230027, 663019, 1610189, 4641133, 11271323, 78899261]

約数ペア:

[(1, 78899261), (7, 11271323), (17, 4641133), (49, 1610189), (119, 663019), (343, 230027), (833, 94717), (1933, 40817), (2401, 32861), (5831, 13531)]