21791787

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{7703}}^1$

素因数の和:7770

約数の個数: 16

約数和(自身を含む): 31062528

約数和(自身を除く): 9270741

約数列:

[1, 3, 23, 41, 69, 123, 943, 2829, 7703, 23109, 177169, 315823, 531507, 947469, 7263929, 21791787]

約数ペア:

[(1, 21791787), (3, 7263929), (23, 947469), (41, 531507), (69, 315823), (123, 177169), (943, 23109), (2829, 7703)]