20468955

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2837}}^1$

素因数の和:2895

約数の個数: 32

約数和(自身を含む): 36235584

約数和(自身を除く): 15766629

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 2837, 7215, 8511, 14185, 36881, 42555, 104969, 110643, 184405, 314907, 524845, 553215, 1364597, 1574535, 4093791, 6822985, 20468955]

約数ペア:

[(1, 20468955), (3, 6822985), (5, 4093791), (13, 1574535), (15, 1364597), (37, 553215), (39, 524845), (65, 314907), (111, 184405), (185, 110643), (195, 104969), (481, 42555), (555, 36881), (1443, 14185), (2405, 8511), (2837, 7215)]