21192075

素因数分解:

$3^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{971}}^1$

素因数の和:1084

約数の個数: 36

約数和(自身を含む): 38388168

約数和(自身を除く): 17196093

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 97, 225, 291, 485, 873, 971, 1455, 2425, 2913, 4365, 4855, 7275, 8739, 14565, 21825, 24275, 43695, 72825, 94187, 218475, 282561, 470935, 847683, 1412805, 2354675, 4238415, 7064025, 21192075]

約数ペア:

[(1, 21192075), (3, 7064025), (5, 4238415), (9, 2354675), (15, 1412805), (25, 847683), (45, 470935), (75, 282561), (97, 218475), (225, 94187), (291, 72825), (485, 43695), (873, 24275), (971, 21825), (1455, 14565), (2425, 8739), (2913, 7275), (4365, 4855)]