21167477516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{2063}}^1\times {\mathrm{135007}}^1$

素因数の和:137093

約数の個数: 24

約数和(自身を含む): 39011911680

約数和(自身を除く): 17844434164

約数列:

[1, 2, 4, 19, 38, 76, 2063, 4126, 8252, 39197, 78394, 135007, 156788, 270014, 540028, 2565133, 5130266, 10260532, 278519441, 557038882, 1114077764, 5291869379, 10583738758, 21167477516]

約数ペア:

[(1, 21167477516), (2, 10583738758), (4, 5291869379), (19, 1114077764), (38, 557038882), (76, 278519441), (2063, 10260532), (4126, 5130266), (8252, 2565133), (39197, 540028), (78394, 270014), (135007, 156788)]