21819410

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4993}}^1$

素因数の和:5042

約数の個数: 32

約数和(自身を含む): 43148160

約数和(自身を除く): 21328750

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 4993, 9986, 24965, 49930, 94867, 114839, 189734, 229678, 474335, 574195, 948670, 1148390, 2181941, 4363882, 10909705, 21819410]

約数ペア:

[(1, 21819410), (2, 10909705), (5, 4363882), (10, 2181941), (19, 1148390), (23, 948670), (38, 574195), (46, 474335), (95, 229678), (115, 189734), (190, 114839), (230, 94867), (437, 49930), (874, 24965), (2185, 9986), (4370, 4993)]