21347795

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1153}}^1$

素因数の和:1211

約数の個数: 24

約数和(自身を含む): 30631776

約数和(自身を除く): 9283981

約数列:

[1, 5, 7, 23, 35, 115, 161, 529, 805, 1153, 2645, 3703, 5765, 8071, 18515, 26519, 40355, 132595, 185633, 609937, 928165, 3049685, 4269559, 21347795]

約数ペア:

[(1, 21347795), (5, 4269559), (7, 3049685), (23, 928165), (35, 609937), (115, 185633), (161, 132595), (529, 40355), (805, 26519), (1153, 18515), (2645, 8071), (3703, 5765)]