21921658

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{23173}}^1$

素因数の和:23229

約数の個数: 16

約数和(自身を含む): 36707616

約数和(自身を除く): 14785958

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 23173, 46346, 254903, 509806, 996439, 1992878, 10960829, 21921658]

約数ペア:

[(1, 21921658), (2, 10960829), (11, 1992878), (22, 996439), (43, 509806), (86, 254903), (473, 46346), (946, 23173)]