21355110

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11299}}^1$

素因数の和:11322

約数の個数: 64

約数和(自身を含む): 65088000

約数和(自身を除く): 43732890

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11299, 22598, 33897, 56495, 67794, 79093, 101691, 112990, 158186, 169485, 203382, 237279, 305073, 338970, 395465, 474558, 508455, 610146, 711837, 790930, 1016910, 1186395, 1423674, 1525365, 2135511, 2372790, 3050730, 3559185, 4271022, 7118370, 10677555, 21355110]

約数ペア:

[(1, 21355110), (2, 10677555), (3, 7118370), (5, 4271022), (6, 3559185), (7, 3050730), (9, 2372790), (10, 2135511), (14, 1525365), (15, 1423674), (18, 1186395), (21, 1016910), (27, 790930), (30, 711837), (35, 610146), (42, 508455), (45, 474558), (54, 395465), (63, 338970), (70, 305073), (90, 237279), (105, 203382), (126, 169485), (135, 158186), (189, 112990), (210, 101691), (270, 79093), (315, 67794), (378, 56495), (630, 33897), (945, 22598), (1890, 11299)]