19988904

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{64067}}^1$

素因数の和:64089

約数の個数: 32

約数和(自身を含む): 53817120

約数和(自身を除く): 33828216

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 64067, 128134, 192201, 256268, 384402, 512536, 768804, 832871, 1537608, 1665742, 2498613, 3331484, 4997226, 6662968, 9994452, 19988904]

約数ペア:

[(1, 19988904), (2, 9994452), (3, 6662968), (4, 4997226), (6, 3331484), (8, 2498613), (12, 1665742), (13, 1537608), (24, 832871), (26, 768804), (39, 512536), (52, 384402), (78, 256268), (104, 192201), (156, 128134), (312, 64067)]