20969823

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 13175457

約数列:

[1, 3, 7, 17, 21, 51, 119, 151, 357, 389, 453, 1057, 1167, 2567, 2723, 3171, 6613, 7701, 8169, 17969, 19839, 46291, 53907, 58739, 138873, 176217, 411173, 998563, 1233519, 2995689, 6989941, 20969823]

約数ペア:

[(1, 20969823), (3, 6989941), (7, 2995689), (17, 1233519), (21, 998563), (51, 411173), (119, 176217), (151, 138873), (357, 58739), (389, 53907), (453, 46291), (1057, 19839), (1167, 17969), (2567, 8169), (2723, 7701), (3171, 6613)]