16868865

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 31852800

約数和(自身を除く): 14983935

約数列:

[1, 3, 5, 13, 15, 19, 29, 39, 57, 65, 87, 95, 145, 157, 195, 247, 285, 377, 435, 471, 551, 741, 785, 1131, 1235, 1653, 1885, 2041, 2355, 2755, 2983, 3705, 4553, 5655, 6123, 7163, 8265, 8949, 10205, 13659, 14915, 21489, 22765, 30615, 35815, 38779, 44745, 59189, 68295, 86507, 107445, 116337, 177567, 193895, 259521, 295945, 432535, 581685, 887835, 1124591, 1297605, 3373773, 5622955, 16868865]

約数ペア:

[(1, 16868865), (3, 5622955), (5, 3373773), (13, 1297605), (15, 1124591), (19, 887835), (29, 581685), (39, 432535), (57, 295945), (65, 259521), (87, 193895), (95, 177567), (145, 116337), (157, 107445), (195, 86507), (247, 68295), (285, 59189), (377, 44745), (435, 38779), (471, 35815), (551, 30615), (741, 22765), (785, 21489), (1131, 14915), (1235, 13659), (1653, 10205), (1885, 8949), (2041, 8265), (2355, 7163), (2755, 6123), (2983, 5655), (3705, 4553)]