218921379

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{6709}}^1$

素因数の和:6934

約数の個数: 16

約数和(自身を含む): 297924000

約数和(自身を除く): 79002621

約数列:

[1, 3, 73, 149, 219, 447, 6709, 10877, 20127, 32631, 489757, 999641, 1469271, 2998923, 72973793, 218921379]

約数ペア:

[(1, 218921379), (3, 72973793), (73, 2998923), (149, 1469271), (219, 999641), (447, 489757), (6709, 32631), (10877, 20127)]