217838295

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22727}}^1$

素因数の和:22812

約数の個数: 32

約数和(自身を含む): 392739840

約数和(自身を除く): 174901545

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 3195, 9585, 22727, 68181, 113635, 204543, 340905, 613629, 1022715, 1613617, 3068145, 4840851, 8068085, 14522553, 24204255, 43567659, 72612765, 217838295]

約数ペア:

[(1, 217838295), (3, 72612765), (5, 43567659), (9, 24204255), (15, 14522553), (27, 8068085), (45, 4840851), (71, 3068145), (135, 1613617), (213, 1022715), (355, 613629), (639, 340905), (1065, 204543), (1917, 113635), (3195, 68181), (9585, 22727)]