21646933

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 8212907

約数列:

[1, 7, 11, 17, 23, 77, 119, 161, 187, 253, 391, 719, 1309, 1771, 2737, 4301, 5033, 7909, 12223, 16537, 30107, 55363, 85561, 115759, 134453, 181907, 281129, 941171, 1273349, 1967903, 3092419, 21646933]

約数ペア:

[(1, 21646933), (7, 3092419), (11, 1967903), (17, 1273349), (23, 941171), (77, 281129), (119, 181907), (161, 134453), (187, 115759), (253, 85561), (391, 55363), (719, 30107), (1309, 16537), (1771, 12223), (2737, 7909), (4301, 5033)]