217874419

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 265950720

約数和(自身を除く): 48076301

約数列:

[1, 7, 29, 67, 83, 193, 203, 469, 581, 1351, 1943, 2407, 5561, 5597, 12931, 13601, 16019, 16849, 38927, 39179, 90517, 112133, 161269, 374999, 464551, 1073273, 1128883, 2624993, 3251857, 7512911, 31124917, 217874419]

約数ペア:

[(1, 217874419), (7, 31124917), (29, 7512911), (67, 3251857), (83, 2624993), (193, 1128883), (203, 1073273), (469, 464551), (581, 374999), (1351, 161269), (1943, 112133), (2407, 90517), (5561, 39179), (5597, 38927), (12931, 16849), (13601, 16019)]