19513988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{19751}}^1$

素因数の和:19787

約数の個数: 24

約数和(自身を含む): 38713920

約数和(自身を除く): 19199932

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 19751, 39502, 79004, 256763, 375269, 513526, 750538, 1027052, 1501076, 4878497, 9756994, 19513988]

約数ペア:

[(1, 19513988), (2, 9756994), (4, 4878497), (13, 1501076), (19, 1027052), (26, 750538), (38, 513526), (52, 375269), (76, 256763), (247, 79004), (494, 39502), (988, 19751)]