20421852

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1181}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 52424064

約数和(自身を除く): 32002212

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 131, 132, 262, 393, 524, 786, 1181, 1441, 1572, 2362, 2882, 3543, 4323, 4724, 5764, 7086, 8646, 12991, 14172, 17292, 25982, 38973, 51964, 77946, 154711, 155892, 309422, 464133, 618844, 928266, 1701821, 1856532, 3403642, 5105463, 6807284, 10210926, 20421852]

約数ペア:

[(1, 20421852), (2, 10210926), (3, 6807284), (4, 5105463), (6, 3403642), (11, 1856532), (12, 1701821), (22, 928266), (33, 618844), (44, 464133), (66, 309422), (131, 155892), (132, 154711), (262, 77946), (393, 51964), (524, 38973), (786, 25982), (1181, 17292), (1441, 14172), (1572, 12991), (2362, 8646), (2882, 7086), (3543, 5764), (4323, 4724)]