21352947

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4019}}^1$

素因数の和:4063

約数の個数: 32

約数和(自身を含む): 37048320

約数和(自身を除く): 15695373

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 4019, 5313, 12057, 28133, 44209, 84399, 92437, 132627, 277311, 309463, 647059, 928389, 1016807, 1941177, 3050421, 7117649, 21352947]

約数ペア:

[(1, 21352947), (3, 7117649), (7, 3050421), (11, 1941177), (21, 1016807), (23, 928389), (33, 647059), (69, 309463), (77, 277311), (161, 132627), (231, 92437), (253, 84399), (483, 44209), (759, 28133), (1771, 12057), (4019, 5313)]