21978352

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{827}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 46818432

約数和(自身を除く): 24840080

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 151, 176, 302, 604, 827, 1208, 1654, 1661, 2416, 3308, 3322, 6616, 6644, 9097, 13232, 13288, 18194, 26576, 36388, 72776, 124877, 145552, 249754, 499508, 999016, 1373647, 1998032, 2747294, 5494588, 10989176, 21978352]

約数ペア:

[(1, 21978352), (2, 10989176), (4, 5494588), (8, 2747294), (11, 1998032), (16, 1373647), (22, 999016), (44, 499508), (88, 249754), (151, 145552), (176, 124877), (302, 72776), (604, 36388), (827, 26576), (1208, 18194), (1654, 13288), (1661, 13232), (2416, 9097), (3308, 6644), (3322, 6616)]