19984090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4261}}^1$

素因数の和:4342

約数の個数: 32

約数和(自身を含む): 41733504

約数和(自身を除く): 21749414

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4261, 4690, 8522, 21305, 29827, 42610, 59654, 149135, 285487, 298270, 570974, 1427435, 1998409, 2854870, 3996818, 9992045, 19984090]

約数ペア:

[(1, 19984090), (2, 9992045), (5, 3996818), (7, 2854870), (10, 1998409), (14, 1427435), (35, 570974), (67, 298270), (70, 285487), (134, 149135), (335, 59654), (469, 42610), (670, 29827), (938, 21305), (2345, 8522), (4261, 4690)]