21089506

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{4051}}^1$

素因数の和:4209

約数の個数: 16

約数和(自身を含む): 33550560

約数和(自身を除く): 12461054

約数列:

[1, 2, 19, 38, 137, 274, 2603, 4051, 5206, 8102, 76969, 153938, 554987, 1109974, 10544753, 21089506]

約数ペア:

[(1, 21089506), (2, 10544753), (19, 1109974), (38, 554987), (137, 153938), (274, 76969), (2603, 8102), (4051, 5206)]