20544111

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1907}}^1$

素因数の和:1945

約数の個数: 40

約数和(自身を含む): 36938880

約数和(自身を除く): 16394769

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 1907, 3591, 5721, 10773, 13349, 17163, 36233, 40047, 51489, 108699, 120141, 154467, 253631, 326097, 360423, 760893, 978291, 1081269, 2282679, 2934873, 6848037, 20544111]

約数ペア:

[(1, 20544111), (3, 6848037), (7, 2934873), (9, 2282679), (19, 1081269), (21, 978291), (27, 760893), (57, 360423), (63, 326097), (81, 253631), (133, 154467), (171, 120141), (189, 108699), (399, 51489), (513, 40047), (567, 36233), (1197, 17163), (1539, 13349), (1907, 10773), (3591, 5721)]