393399585

素因数分解:

$3^4\times 5^1\times {\mathrm{971357}}^1$

素因数の和:971374

約数の個数: 20

約数和(自身を含む): 705205908

約数和(自身を除く): 311806323

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 971357, 2914071, 4856785, 8742213, 14570355, 26226639, 43711065, 78679917, 131133195, 393399585]

約数ペア:

[(1, 393399585), (3, 131133195), (5, 78679917), (9, 43711065), (15, 26226639), (27, 14570355), (45, 8742213), (81, 4856785), (135, 2914071), (405, 971357)]