22081997

素因数分解:

$7^4\times {\mathrm{17}}^1\times {\mathrm{541}}^1$

素因数の和:586

約数の個数: 20

約数和(自身を含む): 27326556

約数和(自身を除く): 5244559

約数列:

[1, 7, 17, 49, 119, 343, 541, 833, 2401, 3787, 5831, 9197, 26509, 40817, 64379, 185563, 450653, 1298941, 3154571, 22081997]

約数ペア:

[(1, 22081997), (7, 3154571), (17, 1298941), (49, 450653), (119, 185563), (343, 64379), (541, 40817), (833, 26509), (2401, 9197), (3787, 5831)]