21628327

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1187}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 26231040

約数和(自身を除く): 4602713

約数列:

[1, 7, 19, 133, 137, 959, 1187, 2603, 8309, 18221, 22553, 157871, 162619, 1138333, 3089761, 21628327]

約数ペア:

[(1, 21628327), (7, 3089761), (19, 1138333), (133, 162619), (137, 157871), (959, 22553), (1187, 18221), (2603, 8309)]