745665021

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{214087}}^1$

素因数の和:214142

約数の個数: 20

約数和(自身を含む): 1139804512

約数和(自身を除く): 394139491

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 214087, 642261, 1926783, 5780349, 9205741, 17341047, 27617223, 82851669, 248555007, 745665021]

約数ペア:

[(1, 745665021), (3, 248555007), (9, 82851669), (27, 27617223), (43, 17341047), (81, 9205741), (129, 5780349), (387, 1926783), (1161, 642261), (3483, 214087)]