20901687

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 31269888

約数和(自身を除く): 10368201

約数列:

[1, 3, 17, 23, 51, 69, 103, 173, 309, 391, 519, 1173, 1751, 2369, 2941, 3979, 5253, 7107, 8823, 11937, 17819, 40273, 53457, 67643, 120819, 202929, 302923, 409837, 908769, 1229511, 6967229, 20901687]

約数ペア:

[(1, 20901687), (3, 6967229), (17, 1229511), (23, 908769), (51, 409837), (69, 302923), (103, 202929), (173, 120819), (309, 67643), (391, 53457), (519, 40273), (1173, 17819), (1751, 11937), (2369, 8823), (2941, 7107), (3979, 5253)]