21127568

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1559}}^1$

素因数の和:1596

約数の個数: 60

約数和(自身を含む): 51455040

約数和(自身を除く): 30327472

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 121, 154, 176, 242, 308, 484, 616, 847, 968, 1232, 1559, 1694, 1936, 3118, 3388, 6236, 6776, 10913, 12472, 13552, 17149, 21826, 24944, 34298, 43652, 68596, 87304, 120043, 137192, 174608, 188639, 240086, 274384, 377278, 480172, 754556, 960344, 1320473, 1509112, 1920688, 2640946, 3018224, 5281892, 10563784, 21127568]

約数ペア:

[(1, 21127568), (2, 10563784), (4, 5281892), (7, 3018224), (8, 2640946), (11, 1920688), (14, 1509112), (16, 1320473), (22, 960344), (28, 754556), (44, 480172), (56, 377278), (77, 274384), (88, 240086), (112, 188639), (121, 174608), (154, 137192), (176, 120043), (242, 87304), (308, 68596), (484, 43652), (616, 34298), (847, 24944), (968, 21826), (1232, 17149), (1559, 13552), (1694, 12472), (1936, 10913), (3118, 6776), (3388, 6236)]