21337725

素因数分解:

$3^1\times 5^2\times {\mathrm{293}}^1\times {\mathrm{971}}^1$

素因数の和:1277

約数の個数: 24

約数和(自身を含む): 35435232

約数和(自身を除く): 14097507

約数列:

[1, 3, 5, 15, 25, 75, 293, 879, 971, 1465, 2913, 4395, 4855, 7325, 14565, 21975, 24275, 72825, 284503, 853509, 1422515, 4267545, 7112575, 21337725]

約数ペア:

[(1, 21337725), (3, 7112575), (5, 4267545), (15, 1422515), (25, 853509), (75, 284503), (293, 72825), (879, 24275), (971, 21975), (1465, 14565), (2913, 7325), (4395, 4855)]