21512036

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{523}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 46833024

約数和(自身を除く): 25320988

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 113, 182, 226, 364, 452, 523, 791, 1046, 1469, 1582, 2092, 2938, 3164, 3661, 5876, 6799, 7322, 10283, 13598, 14644, 20566, 27196, 41132, 47593, 59099, 95186, 118198, 190372, 236396, 413693, 768287, 827386, 1536574, 1654772, 3073148, 5378009, 10756018, 21512036]

約数ペア:

[(1, 21512036), (2, 10756018), (4, 5378009), (7, 3073148), (13, 1654772), (14, 1536574), (26, 827386), (28, 768287), (52, 413693), (91, 236396), (113, 190372), (182, 118198), (226, 95186), (364, 59099), (452, 47593), (523, 41132), (791, 27196), (1046, 20566), (1469, 14644), (1582, 13598), (2092, 10283), (2938, 7322), (3164, 6799), (3661, 5876)]