20128458

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{11689}}^1$

素因数の和:11742

約数の個数: 32

約数和(自身を含む): 47134080

約数和(自身を除く): 27005622

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 123, 246, 287, 574, 861, 1722, 11689, 23378, 35067, 70134, 81823, 163646, 245469, 479249, 490938, 958498, 1437747, 2875494, 3354743, 6709486, 10064229, 20128458]

約数ペア:

[(1, 20128458), (2, 10064229), (3, 6709486), (6, 3354743), (7, 2875494), (14, 1437747), (21, 958498), (41, 490938), (42, 479249), (82, 245469), (123, 163646), (246, 81823), (287, 70134), (574, 35067), (861, 23378), (1722, 11689)]