21187198778

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1\times {\mathrm{467}}^1\times {\mathrm{1499}}^1$

素因数の和:2414

約数の個数: 32

約数和(自身を含む): 32811480000

約数和(自身を除く): 11624281222

約数列:

[1, 2, 37, 74, 409, 467, 818, 934, 1499, 2998, 15133, 17279, 30266, 34558, 55463, 110926, 191003, 382006, 613091, 700033, 1226182, 1400066, 7067111, 14134222, 22684367, 25901221, 45368734, 51802442, 286313497, 572626994, 10593599389, 21187198778]

約数ペア:

[(1, 21187198778), (2, 10593599389), (37, 572626994), (74, 286313497), (409, 51802442), (467, 45368734), (818, 25901221), (934, 22684367), (1499, 14134222), (2998, 7067111), (15133, 1400066), (17279, 1226182), (30266, 700033), (34558, 613091), (55463, 382006), (110926, 191003)]