20165979897

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16847101}}^1$

素因数の和:16847133

約数の個数: 24

約数和(自身を含む): 35041972160

約数和(自身を除く): 14875992263

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16847101, 50541303, 117929707, 151623909, 320094919, 353789121, 960284757, 1061367363, 2240664433, 2880854271, 6721993299, 20165979897]

約数ペア:

[(1, 20165979897), (3, 6721993299), (7, 2880854271), (9, 2240664433), (19, 1061367363), (21, 960284757), (57, 353789121), (63, 320094919), (133, 151623909), (171, 117929707), (399, 50541303), (1197, 16847101)]