20608395

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13606005

約数列:

[1, 3, 5, 15, 43, 89, 129, 215, 267, 359, 445, 645, 1077, 1335, 1795, 3827, 5385, 11481, 15437, 19135, 31951, 46311, 57405, 77185, 95853, 159755, 231555, 479265, 1373893, 4121679, 6869465, 20608395]

約数ペア:

[(1, 20608395), (3, 6869465), (5, 4121679), (15, 1373893), (43, 479265), (89, 231555), (129, 159755), (215, 95853), (267, 77185), (359, 57405), (445, 46311), (645, 31951), (1077, 19135), (1335, 15437), (1795, 11481), (3827, 5385)]