21986811

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31727}}^1$

素因数の和:31751

約数の個数: 24

約数和(自身を含む): 39596544

約数和(自身を除く): 17609733

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31727, 95181, 222089, 285543, 348997, 666267, 1046991, 1998801, 2442979, 3140973, 7328937, 21986811]

約数ペア:

[(1, 21986811), (3, 7328937), (7, 3140973), (9, 2442979), (11, 1998801), (21, 1046991), (33, 666267), (63, 348997), (77, 285543), (99, 222089), (231, 95181), (693, 31727)]