20749976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10501}}^1$

素因数の和:10539

約数の個数: 32

約数和(自身を含む): 44108400

約数和(自身を除く): 23358424

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10501, 21002, 42004, 84008, 136513, 199519, 273026, 399038, 546052, 798076, 1092104, 1596152, 2593747, 5187494, 10374988, 20749976]

約数ペア:

[(1, 20749976), (2, 10374988), (4, 5187494), (8, 2593747), (13, 1596152), (19, 1092104), (26, 798076), (38, 546052), (52, 399038), (76, 273026), (104, 199519), (152, 136513), (247, 84008), (494, 42004), (988, 21002), (1976, 10501)]