21160629

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1087}}^1$

素因数の和:1206

約数の個数: 32

約数和(自身を含む): 36208640

約数和(自身を除く): 15048011

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 1087, 2163, 2781, 3261, 6489, 7609, 9783, 19467, 22827, 29349, 68481, 111961, 205443, 335883, 783727, 1007649, 2351181, 3022947, 7053543, 21160629]

約数ペア:

[(1, 21160629), (3, 7053543), (7, 3022947), (9, 2351181), (21, 1007649), (27, 783727), (63, 335883), (103, 205443), (189, 111961), (309, 68481), (721, 29349), (927, 22827), (1087, 19467), (2163, 9783), (2781, 7609), (3261, 6489)]