21210424

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{593}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 42340320

約数和(自身を除く): 21129896

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 263, 526, 593, 1052, 1186, 2104, 2372, 4471, 4744, 8942, 10081, 17884, 20162, 35768, 40324, 80648, 155959, 311918, 623836, 1247672, 2651303, 5302606, 10605212, 21210424]

約数ペア:

[(1, 21210424), (2, 10605212), (4, 5302606), (8, 2651303), (17, 1247672), (34, 623836), (68, 311918), (136, 155959), (263, 80648), (526, 40324), (593, 35768), (1052, 20162), (1186, 17884), (2104, 10081), (2372, 8942), (4471, 4744)]