217444995

素因数分解:

$3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{22901}}^1$

素因数の和:23123

約数の個数: 24

約数和(自身を含む): 378707472

約数和(自身を除く): 161262477

約数列:

[1, 3, 5, 9, 15, 45, 211, 633, 1055, 1899, 3165, 9495, 22901, 68703, 114505, 206109, 343515, 1030545, 4832111, 14496333, 24160555, 43488999, 72481665, 217444995]

約数ペア:

[(1, 217444995), (3, 72481665), (5, 43488999), (9, 24160555), (15, 14496333), (45, 4832111), (211, 1030545), (633, 343515), (1055, 206109), (1899, 114505), (3165, 68703), (9495, 22901)]