21731395

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 31102848

約数和(自身を除く): 9371453

約数列:

[1, 5, 7, 35, 37, 97, 173, 185, 259, 485, 679, 865, 1211, 1295, 3395, 3589, 6055, 6401, 16781, 17945, 25123, 32005, 44807, 83905, 117467, 125615, 224035, 587335, 620897, 3104485, 4346279, 21731395]

約数ペア:

[(1, 21731395), (5, 4346279), (7, 3104485), (35, 620897), (37, 587335), (97, 224035), (173, 125615), (185, 117467), (259, 83905), (485, 44807), (679, 32005), (865, 25123), (1211, 17945), (1295, 16781), (3395, 6401), (3589, 6055)]