18870327

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1447}}^1$

素因数の和:1489

約数の個数: 40

約数和(自身を含む): 33639936

約数和(自身を除く): 14769609

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1447, 1449, 1863, 4341, 4347, 10129, 13023, 13041, 30387, 33281, 39069, 91161, 99843, 117207, 232967, 273483, 299529, 698901, 820449, 898587, 2096703, 2695761, 6290109, 18870327]

約数ペア:

[(1, 18870327), (3, 6290109), (7, 2695761), (9, 2096703), (21, 898587), (23, 820449), (27, 698901), (63, 299529), (69, 273483), (81, 232967), (161, 117207), (189, 99843), (207, 91161), (483, 39069), (567, 33281), (621, 30387), (1447, 13041), (1449, 13023), (1863, 10129), (4341, 4347)]