19563639

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 28600320

約数和(自身を除く): 9036681

約数列:

[1, 3, 23, 37, 69, 79, 97, 111, 237, 291, 851, 1817, 2231, 2553, 2923, 3589, 5451, 6693, 7663, 8769, 10767, 22989, 67229, 82547, 176249, 201687, 247641, 283531, 528747, 850593, 6521213, 19563639]

約数ペア:

[(1, 19563639), (3, 6521213), (23, 850593), (37, 528747), (69, 283531), (79, 247641), (97, 201687), (111, 176249), (237, 82547), (291, 67229), (851, 22989), (1817, 10767), (2231, 8769), (2553, 7663), (2923, 6693), (3589, 5451)]