20979924

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{659}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 56179200

約数和(自身を除く): 35199276

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 379, 659, 758, 1137, 1318, 1516, 1977, 2274, 2636, 2653, 3954, 4548, 4613, 5306, 7908, 7959, 9226, 10612, 13839, 15918, 18452, 27678, 31836, 55356, 249761, 499522, 749283, 999044, 1498566, 1748327, 2997132, 3496654, 5244981, 6993308, 10489962, 20979924]

約数ペア:

[(1, 20979924), (2, 10489962), (3, 6993308), (4, 5244981), (6, 3496654), (7, 2997132), (12, 1748327), (14, 1498566), (21, 999044), (28, 749283), (42, 499522), (84, 249761), (379, 55356), (659, 31836), (758, 27678), (1137, 18452), (1318, 15918), (1516, 13839), (1977, 10612), (2274, 9226), (2636, 7959), (2653, 7908), (3954, 5306), (4548, 4613)]