20867847

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6949}}^1$

素因数の和:6983

約数の個数: 32

約数和(自身を含む): 37363200

約数和(自身を除く): 16495353

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 6949, 20847, 48643, 76439, 90337, 145929, 229317, 271011, 535073, 632359, 993707, 1605219, 1897077, 2981121, 6955949, 20867847]

約数ペア:

[(1, 20867847), (3, 6955949), (7, 2981121), (11, 1897077), (13, 1605219), (21, 993707), (33, 632359), (39, 535073), (77, 271011), (91, 229317), (143, 145929), (231, 90337), (273, 76439), (429, 48643), (1001, 20847), (3003, 6949)]