20803695

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2137}}^1$

素因数の和:2215

約数の個数: 32

約数和(自身を含む): 36944640

約数和(自身を除く): 16140945

約数列:

[1, 3, 5, 11, 15, 33, 55, 59, 165, 177, 295, 649, 885, 1947, 2137, 3245, 6411, 9735, 10685, 23507, 32055, 70521, 117535, 126083, 352605, 378249, 630415, 1386913, 1891245, 4160739, 6934565, 20803695]

約数ペア:

[(1, 20803695), (3, 6934565), (5, 4160739), (11, 1891245), (15, 1386913), (33, 630415), (55, 378249), (59, 352605), (165, 126083), (177, 117535), (295, 70521), (649, 32055), (885, 23507), (1947, 10685), (2137, 9735), (3245, 6411)]