20591901

素因数分解:

$3^4\times {\mathrm{11}}^3\times {\mathrm{191}}^1$

素因数の和:236

約数の個数: 40

約数和(自身を含む): 34011648

約数和(自身を除く): 13419747

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 121, 191, 297, 363, 573, 891, 1089, 1331, 1719, 2101, 3267, 3993, 5157, 6303, 9801, 11979, 15471, 18909, 23111, 35937, 56727, 69333, 107811, 170181, 207999, 254221, 623997, 762663, 1871991, 2287989, 6863967, 20591901]

約数ペア:

[(1, 20591901), (3, 6863967), (9, 2287989), (11, 1871991), (27, 762663), (33, 623997), (81, 254221), (99, 207999), (121, 170181), (191, 107811), (297, 69333), (363, 56727), (573, 35937), (891, 23111), (1089, 18909), (1331, 15471), (1719, 11979), (2101, 9801), (3267, 6303), (3993, 5157)]