20858647539

素因数分解:

$3^1\times {\mathrm{17}}^3\times {\mathrm{661}}^1\times {\mathrm{2141}}^1$

素因数の和:2856

約数の個数: 32

約数和(自身を含む): 29607923520

約数和(自身を除く): 8749275981

約数列:

[1, 3, 17, 51, 289, 661, 867, 1983, 2141, 4913, 6423, 11237, 14739, 33711, 36397, 109191, 191029, 573087, 618749, 1415201, 1856247, 3247493, 4245603, 9742479, 10518733, 24058417, 31556199, 72175251, 408993089, 1226979267, 6952882513, 20858647539]

約数ペア:

[(1, 20858647539), (3, 6952882513), (17, 1226979267), (51, 408993089), (289, 72175251), (661, 31556199), (867, 24058417), (1983, 10518733), (2141, 9742479), (4913, 4245603), (6423, 3247493), (11237, 1856247), (14739, 1415201), (33711, 618749), (36397, 573087), (109191, 191029)]