21432879

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4951}}^1$

素因数の和:5007

約数の個数: 24

約数和(自身を含む): 34248032

約数和(自身を除く): 12815153

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 4951, 14853, 44559, 64363, 183187, 193089, 549561, 579267, 1648683, 2381431, 7144293, 21432879]

約数ペア:

[(1, 21432879), (3, 7144293), (9, 2381431), (13, 1648683), (37, 579267), (39, 549561), (111, 193089), (117, 183187), (333, 64363), (481, 44559), (1443, 14853), (4329, 4951)]