2181998

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 4247040

約数和(自身を除く): 2065042

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 631, 1262, 1729, 3458, 4417, 8203, 8834, 11989, 16406, 23978, 57421, 83923, 114842, 155857, 167846, 311714, 1090999, 2181998]

約数ペア:

[(1, 2181998), (2, 1090999), (7, 311714), (13, 167846), (14, 155857), (19, 114842), (26, 83923), (38, 57421), (91, 23978), (133, 16406), (182, 11989), (247, 8834), (266, 8203), (494, 4417), (631, 3458), (1262, 1729)]