20542914

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8581}}^1$

素因数の和:8615

約数の個数: 48

約数和(自身を含む): 53551680

約数和(自身を除く): 33008766

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 399, 798, 1197, 2394, 8581, 17162, 25743, 51486, 60067, 77229, 120134, 154458, 163039, 180201, 326078, 360402, 489117, 540603, 978234, 1081206, 1141273, 1467351, 2282546, 2934702, 3423819, 6847638, 10271457, 20542914]

約数ペア:

[(1, 20542914), (2, 10271457), (3, 6847638), (6, 3423819), (7, 2934702), (9, 2282546), (14, 1467351), (18, 1141273), (19, 1081206), (21, 978234), (38, 540603), (42, 489117), (57, 360402), (63, 326078), (114, 180201), (126, 163039), (133, 154458), (171, 120134), (266, 77229), (342, 60067), (399, 51486), (798, 25743), (1197, 17162), (2394, 8581)]