208717019

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4517}}^1$

素因数の和:4595

約数の個数: 24

約数和(自身を含む): 259586208

約数和(自身を除く): 50869189

約数列:

[1, 7, 23, 41, 49, 161, 287, 943, 1127, 2009, 4517, 6601, 31619, 46207, 103891, 185197, 221333, 727237, 1296379, 4259531, 5090659, 9074653, 29816717, 208717019]

約数ペア:

[(1, 208717019), (7, 29816717), (23, 9074653), (41, 5090659), (49, 4259531), (161, 1296379), (287, 727237), (943, 221333), (1127, 185197), (2009, 103891), (4517, 46207), (6601, 31619)]