21244527

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{439}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 32489600

約数和(自身を除く): 11245073

約数列:

[1, 3, 9, 19, 57, 171, 283, 439, 849, 1317, 2547, 3951, 5377, 8341, 16131, 25023, 48393, 75069, 124237, 372711, 1118133, 2360503, 7081509, 21244527]

約数ペア:

[(1, 21244527), (3, 7081509), (9, 2360503), (19, 1118133), (57, 372711), (171, 124237), (283, 75069), (439, 48393), (849, 25023), (1317, 16131), (2547, 8341), (3951, 5377)]