28478956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{20879}}^1$

素因数の和:20925

約数の個数: 24

約数和(自身を含む): 56125440

約数和(自身を除く): 27646484

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 20879, 41758, 83516, 229669, 459338, 647249, 918676, 1294498, 2588996, 7119739, 14239478, 28478956]

約数ペア:

[(1, 28478956), (2, 14239478), (4, 7119739), (11, 2588996), (22, 1294498), (31, 918676), (44, 647249), (62, 459338), (124, 229669), (341, 83516), (682, 41758), (1364, 20879)]