21891496

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{13093}}^1$

素因数の和:13129

約数の個数: 32

約数和(自身を含む): 47138400

約数和(自身を除く): 25246904

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 13093, 26186, 52372, 104744, 144023, 248767, 288046, 497534, 576092, 995068, 1152184, 1990136, 2736437, 5472874, 10945748, 21891496]

約数ペア:

[(1, 21891496), (2, 10945748), (4, 5472874), (8, 2736437), (11, 1990136), (19, 1152184), (22, 995068), (38, 576092), (44, 497534), (76, 288046), (88, 248767), (152, 144023), (209, 104744), (418, 52372), (836, 26186), (1672, 13093)]