217203707

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 266112000

約数和(自身を除く): 48908293

約数列:

[1, 7, 29, 43, 149, 167, 203, 301, 1043, 1169, 1247, 4321, 4843, 6407, 7181, 8729, 24883, 30247, 33901, 44849, 50267, 174181, 185803, 208249, 721607, 1069969, 1300621, 1457743, 5051249, 7489783, 31029101, 217203707]

約数ペア:

[(1, 217203707), (7, 31029101), (29, 7489783), (43, 5051249), (149, 1457743), (167, 1300621), (203, 1069969), (301, 721607), (1043, 208249), (1169, 185803), (1247, 174181), (4321, 50267), (4843, 44849), (6407, 33901), (7181, 30247), (8729, 24883)]