21865858049

素因数分解:

$7^2\times {\mathrm{97}}^1\times {\mathrm{211}}^1\times {\mathrm{21803}}^1$

素因数の和:22125

約数の個数: 24

約数和(自身を含む): 25820994528

約数和(自身を除く): 3955136479

約数列:

[1, 7, 49, 97, 211, 679, 1477, 4753, 10339, 20467, 21803, 143269, 152621, 1002883, 1068347, 2114891, 4600433, 14804237, 32203031, 103629659, 225421217, 446242001, 3123694007, 21865858049]

約数ペア:

[(1, 21865858049), (7, 3123694007), (49, 446242001), (97, 225421217), (211, 103629659), (679, 32203031), (1477, 14804237), (4753, 4600433), (10339, 2114891), (20467, 1068347), (21803, 1002883), (143269, 152621)]