21102081

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7027}}^1$

素因数の和:7061

約数の個数: 32

約数和(自身を含む): 37782528

約数和(自身を除く): 16680447

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 7027, 21081, 49189, 77297, 91351, 147567, 231891, 274053, 541079, 639457, 1004861, 1623237, 1918371, 3014583, 7034027, 21102081]

約数ペア:

[(1, 21102081), (3, 7034027), (7, 3014583), (11, 1918371), (13, 1623237), (21, 1004861), (33, 639457), (39, 541079), (77, 274053), (91, 231891), (143, 147567), (231, 91351), (273, 77297), (429, 49189), (1001, 21081), (3003, 7027)]