21284097

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1187}}^1$

素因数の和:1372

約数の個数: 16

約数和(自身を含む): 29272320

約数和(自身を除く): 7988223

約数列:

[1, 3, 43, 129, 139, 417, 1187, 3561, 5977, 17931, 51041, 153123, 164993, 494979, 7094699, 21284097]

約数ペア:

[(1, 21284097), (3, 7094699), (43, 494979), (129, 164993), (139, 153123), (417, 51041), (1187, 17931), (3561, 5977)]