19684444

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{787}}^1$

素因数の和:854

約数の個数: 36

約数和(自身を含む): 38358264

約数和(自身を除く): 18673820

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 169, 338, 481, 676, 787, 962, 1574, 1924, 3148, 6253, 10231, 12506, 20462, 25012, 29119, 40924, 58238, 116476, 133003, 266006, 378547, 532012, 757094, 1514188, 4921111, 9842222, 19684444]

約数ペア:

[(1, 19684444), (2, 9842222), (4, 4921111), (13, 1514188), (26, 757094), (37, 532012), (52, 378547), (74, 266006), (148, 133003), (169, 116476), (338, 58238), (481, 40924), (676, 29119), (787, 25012), (962, 20462), (1574, 12506), (1924, 10231), (3148, 6253)]