21489608

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1063}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 48646080

約数和(自身を除く): 27156472

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 361, 532, 722, 1063, 1064, 1444, 2126, 2527, 2888, 4252, 5054, 7441, 8504, 10108, 14882, 20197, 20216, 29764, 40394, 59528, 80788, 141379, 161576, 282758, 383743, 565516, 767486, 1131032, 1534972, 2686201, 3069944, 5372402, 10744804, 21489608]

約数ペア:

[(1, 21489608), (2, 10744804), (4, 5372402), (7, 3069944), (8, 2686201), (14, 1534972), (19, 1131032), (28, 767486), (38, 565516), (56, 383743), (76, 282758), (133, 161576), (152, 141379), (266, 80788), (361, 59528), (532, 40394), (722, 29764), (1063, 20216), (1064, 20197), (1444, 14882), (2126, 10108), (2527, 8504), (2888, 7441), (4252, 5054)]