28481895

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16229}}^1$

素因数の和:16256

約数の個数: 32

約数和(自身を含む): 54532800

約数和(自身を除く): 26050905

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 16229, 48687, 81145, 146061, 210977, 243435, 438183, 632931, 730305, 1054885, 1898793, 2190915, 3164655, 5696379, 9493965, 28481895]

約数ペア:

[(1, 28481895), (3, 9493965), (5, 5696379), (9, 3164655), (13, 2190915), (15, 1898793), (27, 1054885), (39, 730305), (45, 632931), (65, 438183), (117, 243435), (135, 210977), (195, 146061), (351, 81145), (585, 48687), (1755, 16229)]