1231890121

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1\times {\mathrm{907}}^1$

素因数の和:1525

約数の個数: 32

約数和(自身を含む): 1589944320

約数和(自身を除く): 358054199

約数列:

[1, 7, 11, 31, 77, 217, 341, 569, 907, 2387, 3983, 6259, 6349, 9977, 17639, 28117, 43813, 69839, 123473, 194029, 196819, 309287, 516083, 1358203, 2165009, 3612581, 5676913, 15998573, 39738391, 111990011, 175984303, 1231890121]

約数ペア:

[(1, 1231890121), (7, 175984303), (11, 111990011), (31, 39738391), (77, 15998573), (217, 5676913), (341, 3612581), (569, 2165009), (907, 1358203), (2387, 516083), (3983, 309287), (6259, 196819), (6349, 194029), (9977, 123473), (17639, 69839), (28117, 43813)]