21503053

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 26088480

約数和(自身を除く): 4585427

約数列:

[1, 11, 13, 43, 143, 169, 269, 473, 559, 1859, 2959, 3497, 6149, 7267, 11567, 38467, 45461, 79937, 127237, 150371, 500071, 1654081, 1954823, 21503053]

約数ペア:

[(1, 21503053), (11, 1954823), (13, 1654081), (43, 500071), (143, 150371), (169, 127237), (269, 79937), (473, 45461), (559, 38467), (1859, 11567), (2959, 7267), (3497, 6149)]