20848984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{653}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 42300720

約数和(自身を除く): 21451736

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 307, 614, 653, 1228, 1306, 2456, 2612, 3991, 5224, 7982, 8489, 15964, 16978, 31928, 33956, 67912, 200471, 400942, 801884, 1603768, 2606123, 5212246, 10424492, 20848984]

約数ペア:

[(1, 20848984), (2, 10424492), (4, 5212246), (8, 2606123), (13, 1603768), (26, 801884), (52, 400942), (104, 200471), (307, 67912), (614, 33956), (653, 31928), (1228, 16978), (1306, 15964), (2456, 8489), (2612, 7982), (3991, 5224)]