18974787

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{883}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 29702400

約数和(自身を除く): 10727613

約数列:

[1, 3, 13, 19, 29, 39, 57, 87, 247, 377, 551, 741, 883, 1131, 1653, 2649, 7163, 11479, 16777, 21489, 25607, 34437, 50331, 76821, 218101, 332891, 486533, 654303, 998673, 1459599, 6324929, 18974787]

約数ペア:

[(1, 18974787), (3, 6324929), (13, 1459599), (19, 998673), (29, 654303), (39, 486533), (57, 332891), (87, 218101), (247, 76821), (377, 50331), (551, 34437), (741, 25607), (883, 21489), (1131, 16777), (1653, 11479), (2649, 7163)]