218445981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{70901}}^1$

素因数の和:70996

約数の個数: 16

約数和(自身を含む): 317640960

約数和(自身を除く): 99194979

約数列:

[1, 3, 13, 39, 79, 237, 1027, 3081, 70901, 212703, 921713, 2765139, 5601179, 16803537, 72815327, 218445981]

約数ペア:

[(1, 218445981), (3, 72815327), (13, 16803537), (39, 5601179), (79, 2765139), (237, 921713), (1027, 212703), (3081, 70901)]