20007435

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 37691136

約数和(自身を除く): 17683701

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 163, 167, 245, 489, 501, 735, 815, 835, 1141, 1169, 2445, 2505, 3423, 3507, 5705, 5845, 7987, 8183, 17115, 17535, 23961, 24549, 27221, 39935, 40915, 81663, 119805, 122745, 136105, 190547, 408315, 571641, 952735, 1333829, 2858205, 4001487, 6669145, 20007435]

約数ペア:

[(1, 20007435), (3, 6669145), (5, 4001487), (7, 2858205), (15, 1333829), (21, 952735), (35, 571641), (49, 408315), (105, 190547), (147, 136105), (163, 122745), (167, 119805), (245, 81663), (489, 40915), (501, 39935), (735, 27221), (815, 24549), (835, 23961), (1141, 17535), (1169, 17115), (2445, 8183), (2505, 7987), (3423, 5845), (3507, 5705)]