21472395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5527}}^1$

素因数の和:5579

約数の個数: 32

約数和(自身を含む): 40332288

約数和(自身を除く): 18859893

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 5527, 16581, 27635, 38689, 82905, 116067, 193445, 204499, 580335, 613497, 1022495, 1431493, 3067485, 4294479, 7157465, 21472395]

約数ペア:

[(1, 21472395), (3, 7157465), (5, 4294479), (7, 3067485), (15, 1431493), (21, 1022495), (35, 613497), (37, 580335), (105, 204499), (111, 193445), (185, 116067), (259, 82905), (555, 38689), (777, 27635), (1295, 16581), (3885, 5527)]