21095283

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 33564672

約数和(自身を除く): 12469389

約数列:

[1, 3, 11, 17, 31, 33, 51, 93, 187, 341, 527, 561, 1023, 1213, 1581, 3639, 5797, 13343, 17391, 20621, 37603, 40029, 61863, 112809, 226831, 413633, 639251, 680493, 1240899, 1917753, 7031761, 21095283]

約数ペア:

[(1, 21095283), (3, 7031761), (11, 1917753), (17, 1240899), (31, 680493), (33, 639251), (51, 413633), (93, 226831), (187, 112809), (341, 61863), (527, 40029), (561, 37603), (1023, 20621), (1213, 17391), (1581, 13343), (3639, 5797)]