15705821997

素因数分解:

$3^4\times {\mathrm{617}}^1\times {\mathrm{314261}}^1$

素因数の和:314890

約数の個数: 20

約数和(自身を含む): 23499883836

約数和(自身を除く): 7794061839

約数列:

[1, 3, 9, 27, 81, 617, 1851, 5553, 16659, 49977, 314261, 942783, 2828349, 8485047, 25455141, 193899037, 581697111, 1745091333, 5235273999, 15705821997]

約数ペア:

[(1, 15705821997), (3, 5235273999), (9, 1745091333), (27, 581697111), (81, 193899037), (617, 25455141), (1851, 8485047), (5553, 2828349), (16659, 942783), (49977, 314261)]