21621496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1637}}^1$

素因数の和:1783

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 22407944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1637, 1651, 3274, 3302, 6548, 6604, 13096, 13208, 21281, 42562, 85124, 170248, 207899, 415798, 831596, 1663192, 2702687, 5405374, 10810748, 21621496]

約数ペア:

[(1, 21621496), (2, 10810748), (4, 5405374), (8, 2702687), (13, 1663192), (26, 831596), (52, 415798), (104, 207899), (127, 170248), (254, 85124), (508, 42562), (1016, 21281), (1637, 13208), (1651, 13096), (3274, 6604), (3302, 6548)]