21100774

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8741}}^1$

素因数の和:8831

約数の個数: 16

約数和(自身を含む): 33988896

約数和(自身を除く): 12888122

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8741, 17482, 148597, 297194, 620611, 1241222, 10550387, 21100774]

約数ペア:

[(1, 21100774), (2, 10550387), (17, 1241222), (34, 620611), (71, 297194), (142, 148597), (1207, 17482), (2414, 8741)]