21697753

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14831}}^1$

素因数の和:14868

約数の個数: 16

約数和(自身を含む): 28477440

約数和(自身を除く): 6779687

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14831, 103817, 163141, 281789, 1141987, 1972523, 3099679, 21697753]

約数ペア:

[(1, 21697753), (7, 3099679), (11, 1972523), (19, 1141987), (77, 281789), (133, 163141), (209, 103817), (1463, 14831)]