216722247

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{27817}}^1$

素因数の和:27887

約数の個数: 24

約数和(自身を含む): 342495216

約数和(自身を除く): 125772969

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 7791, 27817, 83451, 194719, 584157, 1363033, 1474301, 4089099, 4422903, 10320107, 30960321, 72240749, 216722247]

約数ペア:

[(1, 216722247), (3, 72240749), (7, 30960321), (21, 10320107), (49, 4422903), (53, 4089099), (147, 1474301), (159, 1363033), (371, 584157), (1113, 194719), (2597, 83451), (7791, 27817)]