31081778

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:847

約数の個数: 48

約数和(自身を含む): 60367104

約数和(自身を除く): 29285326

約数列:

[1, 2, 7, 13, 14, 26, 31, 49, 62, 91, 98, 182, 217, 403, 434, 637, 787, 806, 1274, 1519, 1574, 2821, 3038, 5509, 5642, 10231, 11018, 19747, 20462, 24397, 38563, 39494, 48794, 71617, 77126, 143234, 170779, 317161, 341558, 501319, 634322, 1002638, 1195453, 2220127, 2390906, 4440254, 15540889, 31081778]

約数ペア:

[(1, 31081778), (2, 15540889), (7, 4440254), (13, 2390906), (14, 2220127), (26, 1195453), (31, 1002638), (49, 634322), (62, 501319), (91, 341558), (98, 317161), (182, 170779), (217, 143234), (403, 77126), (434, 71617), (637, 48794), (787, 39494), (806, 38563), (1274, 24397), (1519, 20462), (1574, 19747), (2821, 11018), (3038, 10231), (5509, 5642)]