201523221

素因数分解:

$3^4\times {\mathrm{911}}^1\times {\mathrm{2731}}^1$

素因数の和:3654

約数の個数: 20

約数和(自身を含む): 301481664

約数和(自身を除く): 99958443

約数列:

[1, 3, 9, 27, 81, 911, 2731, 2733, 8193, 8199, 24579, 24597, 73737, 73791, 221211, 2487941, 7463823, 22391469, 67174407, 201523221]

約数ペア:

[(1, 201523221), (3, 67174407), (9, 22391469), (27, 7463823), (81, 2487941), (911, 221211), (2731, 73791), (2733, 73737), (8193, 24597), (8199, 24579)]