21628306

素因数分解:

$2^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{2659}}^1$

素因数の和:2758

約数の個数: 24

約数和(自身を含む): 38208240

約数和(自身を除く): 16579934

約数列:

[1, 2, 7, 14, 49, 83, 98, 166, 581, 1162, 2659, 4067, 5318, 8134, 18613, 37226, 130291, 220697, 260582, 441394, 1544879, 3089758, 10814153, 21628306]

約数ペア:

[(1, 21628306), (2, 10814153), (7, 3089758), (14, 1544879), (49, 441394), (83, 260582), (98, 220697), (166, 130291), (581, 37226), (1162, 18613), (2659, 8134), (4067, 5318)]