21010366

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:340

約数の個数: 32

約数和(自身を含む): 35199360

約数和(自身を除く): 14188994

約数列:

[1, 2, 13, 26, 53, 79, 106, 158, 193, 386, 689, 1027, 1378, 2054, 2509, 4187, 5018, 8374, 10229, 15247, 20458, 30494, 54431, 108862, 132977, 198211, 265954, 396422, 808091, 1616182, 10505183, 21010366]

約数ペア:

[(1, 21010366), (2, 10505183), (13, 1616182), (26, 808091), (53, 396422), (79, 265954), (106, 198211), (158, 132977), (193, 108862), (386, 54431), (689, 30494), (1027, 20458), (1378, 15247), (2054, 10229), (2509, 8374), (4187, 5018)]