20771190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20981}}^1$

素因数の和:21005

約数の個数: 48

約数和(自身を含む): 58917456

約数和(自身を除く): 38146266

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20981, 41962, 62943, 104905, 125886, 188829, 209810, 230791, 314715, 377658, 461582, 629430, 692373, 944145, 1153955, 1384746, 1888290, 2077119, 2307910, 3461865, 4154238, 6923730, 10385595, 20771190]

約数ペア:

[(1, 20771190), (2, 10385595), (3, 6923730), (5, 4154238), (6, 3461865), (9, 2307910), (10, 2077119), (11, 1888290), (15, 1384746), (18, 1153955), (22, 944145), (30, 692373), (33, 629430), (45, 461582), (55, 377658), (66, 314715), (90, 230791), (99, 209810), (110, 188829), (165, 125886), (198, 104905), (330, 62943), (495, 41962), (990, 20981)]