19810674

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2731}}^1$

素因数の和:2783

約数の個数: 48

約数和(自身を含む): 47733504

約数和(自身を除く): 27922830

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 186, 234, 279, 403, 558, 806, 1209, 2418, 2731, 3627, 5462, 7254, 8193, 16386, 24579, 35503, 49158, 71006, 84661, 106509, 169322, 213018, 253983, 319527, 507966, 639054, 761949, 1100593, 1523898, 2201186, 3301779, 6603558, 9905337, 19810674]

約数ペア:

[(1, 19810674), (2, 9905337), (3, 6603558), (6, 3301779), (9, 2201186), (13, 1523898), (18, 1100593), (26, 761949), (31, 639054), (39, 507966), (62, 319527), (78, 253983), (93, 213018), (117, 169322), (186, 106509), (234, 84661), (279, 71006), (403, 49158), (558, 35503), (806, 24579), (1209, 16386), (2418, 8193), (2731, 7254), (3627, 5462)]