21757688

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1019}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 43513200

約数和(自身を除く): 21755512

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157, 314, 628, 1019, 1256, 2038, 2669, 4076, 5338, 8152, 10676, 17323, 21352, 34646, 69292, 138584, 159983, 319966, 639932, 1279864, 2719711, 5439422, 10878844, 21757688]

約数ペア:

[(1, 21757688), (2, 10878844), (4, 5439422), (8, 2719711), (17, 1279864), (34, 639932), (68, 319966), (136, 159983), (157, 138584), (314, 69292), (628, 34646), (1019, 21352), (1256, 17323), (2038, 10676), (2669, 8152), (4076, 5338)]