19242872

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 40251120

約数和(自身を除く): 21008248

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 103, 121, 193, 206, 242, 386, 412, 484, 772, 824, 968, 1133, 1544, 2123, 2266, 4246, 4532, 8492, 9064, 12463, 16984, 19879, 23353, 24926, 39758, 46706, 49852, 79516, 93412, 99704, 159032, 186824, 218669, 437338, 874676, 1749352, 2405359, 4810718, 9621436, 19242872]

約数ペア:

[(1, 19242872), (2, 9621436), (4, 4810718), (8, 2405359), (11, 1749352), (22, 874676), (44, 437338), (88, 218669), (103, 186824), (121, 159032), (193, 99704), (206, 93412), (242, 79516), (386, 49852), (412, 46706), (484, 39758), (772, 24926), (824, 23353), (968, 19879), (1133, 16984), (1544, 12463), (2123, 9064), (2266, 8492), (4246, 4532)]