21812570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8831}}^1$

素因数の和:8870

約数の個数: 32

約数和(自身を含む): 44513280

約数和(自身を除く): 22700710

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8831, 17662, 44155, 88310, 114803, 167789, 229606, 335578, 574015, 838945, 1148030, 1677890, 2181257, 4362514, 10906285, 21812570]

約数ペア:

[(1, 21812570), (2, 10906285), (5, 4362514), (10, 2181257), (13, 1677890), (19, 1148030), (26, 838945), (38, 574015), (65, 335578), (95, 229606), (130, 167789), (190, 114803), (247, 88310), (494, 44155), (1235, 17662), (2470, 8831)]