20962515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1103}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 38578176

約数和(自身を除く): 17615661

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 181, 543, 905, 1103, 1267, 2715, 3309, 3801, 5515, 6335, 7721, 16545, 19005, 23163, 38605, 115815, 199643, 598929, 998215, 1397501, 2994645, 4192503, 6987505, 20962515]

約数ペア:

[(1, 20962515), (3, 6987505), (5, 4192503), (7, 2994645), (15, 1397501), (21, 998215), (35, 598929), (105, 199643), (181, 115815), (543, 38605), (905, 23163), (1103, 19005), (1267, 16545), (2715, 7721), (3309, 6335), (3801, 5515)]