19994615451

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{157999}}^1$

素因数の和:158160

約数の個数: 32

約数和(自身を含む): 30588800000

約数和(自身を除く): 10594184549

約数列:

[1, 3, 9, 27, 43, 109, 129, 327, 387, 981, 1161, 2943, 4687, 14061, 42183, 126549, 157999, 473997, 1421991, 4265973, 6793957, 17221891, 20381871, 51665673, 61145613, 154997019, 183436839, 464991057, 740541313, 2221623939, 6664871817, 19994615451]

約数ペア:

[(1, 19994615451), (3, 6664871817), (9, 2221623939), (27, 740541313), (43, 464991057), (109, 183436839), (129, 154997019), (327, 61145613), (387, 51665673), (981, 20381871), (1161, 17221891), (2943, 6793957), (4687, 4265973), (14061, 1421991), (42183, 473997), (126549, 157999)]