19680206

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1523}}^1$

素因数の和:1616

約数の個数: 32

約数和(自身を含む): 36868608

約数和(自身を除く): 17188402

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 142, 182, 497, 923, 994, 1523, 1846, 3046, 6461, 10661, 12922, 19799, 21322, 39598, 108133, 138593, 216266, 277186, 756931, 1405729, 1513862, 2811458, 9840103, 19680206]

約数ペア:

[(1, 19680206), (2, 9840103), (7, 2811458), (13, 1513862), (14, 1405729), (26, 756931), (71, 277186), (91, 216266), (142, 138593), (182, 108133), (497, 39598), (923, 21322), (994, 19799), (1523, 12922), (1846, 10661), (3046, 6461)]