21044504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11903}}^1$

素因数の和:11939

約数の個数: 32

約数和(自身を含む): 44997120

約数和(自身を除く): 23952616

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11903, 23806, 47612, 95224, 154739, 202351, 309478, 404702, 618956, 809404, 1237912, 1618808, 2630563, 5261126, 10522252, 21044504]

約数ペア:

[(1, 21044504), (2, 10522252), (4, 5261126), (8, 2630563), (13, 1618808), (17, 1237912), (26, 809404), (34, 618956), (52, 404702), (68, 309478), (104, 202351), (136, 154739), (221, 95224), (442, 47612), (884, 23806), (1768, 11903)]