18198453

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 31026240

約数和(自身を除く): 12827787

約数列:

[1, 3, 7, 13, 21, 39, 49, 89, 91, 107, 147, 267, 273, 321, 623, 637, 749, 1157, 1391, 1869, 1911, 2247, 3471, 4173, 4361, 5243, 8099, 9523, 9737, 13083, 15729, 24297, 28569, 29211, 56693, 66661, 68159, 123799, 170079, 199983, 204477, 371397, 466627, 866593, 1399881, 2599779, 6066151, 18198453]

約数ペア:

[(1, 18198453), (3, 6066151), (7, 2599779), (13, 1399881), (21, 866593), (39, 466627), (49, 371397), (89, 204477), (91, 199983), (107, 170079), (147, 123799), (267, 68159), (273, 66661), (321, 56693), (623, 29211), (637, 28569), (749, 24297), (1157, 15729), (1391, 13083), (1869, 9737), (1911, 9523), (2247, 8099), (3471, 5243), (4173, 4361)]