20191912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6263}}^1$

素因数の和:6313

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 21902168

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6263, 12526, 25052, 50104, 81419, 162838, 194153, 325676, 388306, 651352, 776612, 1553224, 2523989, 5047978, 10095956, 20191912]

約数ペア:

[(1, 20191912), (2, 10095956), (4, 5047978), (8, 2523989), (13, 1553224), (26, 776612), (31, 651352), (52, 388306), (62, 325676), (104, 194153), (124, 162838), (248, 81419), (403, 50104), (806, 25052), (1612, 12526), (3224, 6263)]