21861117

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 33804800

約数和(自身を除く): 11943683

約数列:

[1, 3, 9, 27, 37, 79, 111, 237, 277, 333, 711, 831, 999, 2133, 2493, 2923, 7479, 8769, 10249, 21883, 26307, 30747, 65649, 78921, 92241, 196947, 276723, 590841, 809671, 2429013, 7287039, 21861117]

約数ペア:

[(1, 21861117), (3, 7287039), (9, 2429013), (27, 809671), (37, 590841), (79, 276723), (111, 196947), (237, 92241), (277, 78921), (333, 65649), (711, 30747), (831, 26307), (999, 21883), (2133, 10249), (2493, 8769), (2923, 7479)]