31553319

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2551}}^1$

素因数の和:2611

約数の個数: 32

約数和(自身を含む): 52264960

約数和(自身を除く): 20711641

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 399, 589, 651, 1767, 2551, 4123, 7653, 12369, 17857, 48469, 53571, 79081, 145407, 237243, 339283, 553567, 1017849, 1502539, 1660701, 4507617, 10517773, 31553319]

約数ペア:

[(1, 31553319), (3, 10517773), (7, 4507617), (19, 1660701), (21, 1502539), (31, 1017849), (57, 553567), (93, 339283), (133, 237243), (217, 145407), (399, 79081), (589, 53571), (651, 48469), (1767, 17857), (2551, 12369), (4123, 7653)]