20724753

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 32947200

約数和(自身を除く): 12222447

約数列:

[1, 3, 7, 21, 43, 59, 129, 177, 301, 389, 413, 903, 1167, 1239, 2537, 2723, 7611, 8169, 16727, 17759, 22951, 50181, 53277, 68853, 117089, 160657, 351267, 481971, 986893, 2960679, 6908251, 20724753]

約数ペア:

[(1, 20724753), (3, 6908251), (7, 2960679), (21, 986893), (43, 481971), (59, 351267), (129, 160657), (177, 117089), (301, 68853), (389, 53277), (413, 50181), (903, 22951), (1167, 17759), (1239, 16727), (2537, 8169), (2723, 7611)]