20478666

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2549}}^1$

素因数の和:2670

約数の個数: 32

約数和(自身を含む): 44553600

約数和(自身を除く): 24074934

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 103, 206, 309, 618, 1339, 2549, 2678, 4017, 5098, 7647, 8034, 15294, 33137, 66274, 99411, 198822, 262547, 525094, 787641, 1575282, 3413111, 6826222, 10239333, 20478666]

約数ペア:

[(1, 20478666), (2, 10239333), (3, 6826222), (6, 3413111), (13, 1575282), (26, 787641), (39, 525094), (78, 262547), (103, 198822), (206, 99411), (309, 66274), (618, 33137), (1339, 15294), (2549, 8034), (2678, 7647), (4017, 5098)]