21154089

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 32845824

約数和(自身を除く): 11691735

約数列:

[1, 3, 11, 23, 33, 47, 69, 141, 253, 517, 593, 759, 1081, 1551, 1779, 3243, 6523, 11891, 13639, 19569, 27871, 35673, 40917, 83613, 150029, 306581, 450087, 641033, 919743, 1923099, 7051363, 21154089]

約数ペア:

[(1, 21154089), (3, 7051363), (11, 1923099), (23, 919743), (33, 641033), (47, 450087), (69, 306581), (141, 150029), (253, 83613), (517, 40917), (593, 35673), (759, 27871), (1081, 19569), (1551, 13639), (1779, 11891), (3243, 6523)]