20042379

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4027}}^1$

素因数の和:4119

約数の個数: 24

約数和(自身を含む): 33512960

約数和(自身を除く): 13470581

約数列:

[1, 3, 7, 9, 21, 63, 79, 237, 553, 711, 1659, 4027, 4977, 12081, 28189, 36243, 84567, 253701, 318133, 954399, 2226931, 2863197, 6680793, 20042379]

約数ペア:

[(1, 20042379), (3, 6680793), (7, 2863197), (9, 2226931), (21, 954399), (63, 318133), (79, 253701), (237, 84567), (553, 36243), (711, 28189), (1659, 12081), (4027, 4977)]