20951703

素因数分解:

$3^5\times {\mathrm{151}}^1\times {\mathrm{571}}^1$

素因数の和:737

約数の個数: 24

約数和(自身を含む): 31647616

約数和(自身を除く): 10695913

約数列:

[1, 3, 9, 27, 81, 151, 243, 453, 571, 1359, 1713, 4077, 5139, 12231, 15417, 36693, 46251, 86221, 138753, 258663, 775989, 2327967, 6983901, 20951703]

約数ペア:

[(1, 20951703), (3, 6983901), (9, 2327967), (27, 775989), (81, 258663), (151, 138753), (243, 86221), (453, 46251), (571, 36693), (1359, 15417), (1713, 12231), (4077, 5139)]