393813

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:86

約数の個数: 36

約数和(自身を含む): 711360

約数和(自身を除く): 317547

約数列:

[1, 3, 7, 9, 19, 21, 47, 49, 57, 63, 133, 141, 147, 171, 329, 399, 423, 441, 893, 931, 987, 1197, 2303, 2679, 2793, 2961, 6251, 6909, 8037, 8379, 18753, 20727, 43757, 56259, 131271, 393813]

約数ペア:

[(1, 393813), (3, 131271), (7, 56259), (9, 43757), (19, 20727), (21, 18753), (47, 8379), (49, 8037), (57, 6909), (63, 6251), (133, 2961), (141, 2793), (147, 2679), (171, 2303), (329, 1197), (399, 987), (423, 931), (441, 893)]