20666084

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{3847}}^1$

素因数の和:3947

約数の個数: 24

約数和(自身を含む): 38787840

約数和(自身を除く): 18121756

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 316, 1343, 2686, 3847, 5372, 7694, 15388, 65399, 130798, 261596, 303913, 607826, 1215652, 5166521, 10333042, 20666084]

約数ペア:

[(1, 20666084), (2, 10333042), (4, 5166521), (17, 1215652), (34, 607826), (68, 303913), (79, 261596), (158, 130798), (316, 65399), (1343, 15388), (2686, 7694), (3847, 5372)]