21850253

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:157

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 4277107

約数列:

[1, 17, 23, 29, 41, 47, 391, 493, 667, 697, 799, 943, 1081, 1189, 1363, 1927, 11339, 16031, 18377, 20213, 23171, 27347, 31349, 32759, 44321, 55883, 464899, 532933, 753457, 950011, 1285309, 21850253]

約数ペア:

[(1, 21850253), (17, 1285309), (23, 950011), (29, 753457), (41, 532933), (47, 464899), (391, 55883), (493, 44321), (667, 32759), (697, 31349), (799, 27347), (943, 23171), (1081, 20213), (1189, 18377), (1363, 16031), (1927, 11339)]