28147095

素因数分解:

$3^4\times 5^1\times {\mathrm{69499}}^1$

素因数の和:69516

約数の個数: 20

約数和(自身を含む): 50457000

約数和(自身を除く): 22309905

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69499, 208497, 347495, 625491, 1042485, 1876473, 3127455, 5629419, 9382365, 28147095]

約数ペア:

[(1, 28147095), (3, 9382365), (5, 5629419), (9, 3127455), (15, 1876473), (27, 1042485), (45, 625491), (81, 347495), (135, 208497), (405, 69499)]