21044776

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 42007680

約数和(自身を除く): 20962904

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 271, 542, 571, 1084, 1142, 2168, 2284, 4568, 4607, 9214, 9707, 18428, 19414, 36856, 38828, 77656, 154741, 309482, 618964, 1237928, 2630597, 5261194, 10522388, 21044776]

約数ペア:

[(1, 21044776), (2, 10522388), (4, 5261194), (8, 2630597), (17, 1237928), (34, 618964), (68, 309482), (136, 154741), (271, 77656), (542, 38828), (571, 36856), (1084, 19414), (1142, 18428), (2168, 9707), (2284, 9214), (4568, 4607)]