21557118

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1291}}^1$

素因数の和:1341

約数の個数: 48

約数和(自身を含む): 49488768

約数和(自身を除く): 27931650

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 121, 138, 242, 253, 363, 506, 726, 759, 1291, 1518, 2582, 2783, 3873, 5566, 7746, 8349, 14201, 16698, 28402, 29693, 42603, 59386, 85206, 89079, 156211, 178158, 312422, 326623, 468633, 653246, 937266, 979869, 1959738, 3592853, 7185706, 10778559, 21557118]

約数ペア:

[(1, 21557118), (2, 10778559), (3, 7185706), (6, 3592853), (11, 1959738), (22, 979869), (23, 937266), (33, 653246), (46, 468633), (66, 326623), (69, 312422), (121, 178158), (138, 156211), (242, 89079), (253, 85206), (363, 59386), (506, 42603), (726, 29693), (759, 28402), (1291, 16698), (1518, 14201), (2582, 8349), (2783, 7746), (3873, 5566)]