21638848

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4391}}^1$

素因数の和:4421

約数の個数: 56

約数和(自身を含む): 53547264

約数和(自身を除く): 31908416

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 154, 176, 224, 308, 352, 448, 616, 704, 1232, 2464, 4391, 4928, 8782, 17564, 30737, 35128, 48301, 61474, 70256, 96602, 122948, 140512, 193204, 245896, 281024, 338107, 386408, 491792, 676214, 772816, 983584, 1352428, 1545632, 1967168, 2704856, 3091264, 5409712, 10819424, 21638848]

約数ペア:

[(1, 21638848), (2, 10819424), (4, 5409712), (7, 3091264), (8, 2704856), (11, 1967168), (14, 1545632), (16, 1352428), (22, 983584), (28, 772816), (32, 676214), (44, 491792), (56, 386408), (64, 338107), (77, 281024), (88, 245896), (112, 193204), (154, 140512), (176, 122948), (224, 96602), (308, 70256), (352, 61474), (448, 48301), (616, 35128), (704, 30737), (1232, 17564), (2464, 8782), (4391, 4928)]