21721884

素因数分解:

$2^2\times 3^1\times {\mathrm{911}}^1\times {\mathrm{1987}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 50765568

約数和(自身を除く): 29043684

約数列:

[1, 2, 3, 4, 6, 12, 911, 1822, 1987, 2733, 3644, 3974, 5466, 5961, 7948, 10932, 11922, 23844, 1810157, 3620314, 5430471, 7240628, 10860942, 21721884]

約数ペア:

[(1, 21721884), (2, 10860942), (3, 7240628), (4, 5430471), (6, 3620314), (12, 1810157), (911, 23844), (1822, 11922), (1987, 10932), (2733, 7948), (3644, 5961), (3974, 5466)]