20557404

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 108

約数和(自身を含む): 62140624

約数和(自身を除く): 41583220

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 58, 63, 84, 87, 97, 116, 126, 174, 194, 203, 252, 261, 291, 348, 388, 406, 522, 582, 609, 679, 812, 841, 873, 1044, 1164, 1218, 1358, 1682, 1746, 1827, 2037, 2436, 2523, 2716, 2813, 3364, 3492, 3654, 4074, 5046, 5626, 5887, 6111, 7308, 7569, 8148, 8439, 10092, 11252, 11774, 12222, 15138, 16878, 17661, 19691, 23548, 24444, 25317, 30276, 33756, 35322, 39382, 50634, 52983, 59073, 70644, 78764, 81577, 101268, 105966, 118146, 163154, 177219, 211932, 236292, 244731, 326308, 354438, 489462, 571039, 708876, 734193, 978924, 1142078, 1468386, 1713117, 2284156, 2936772, 3426234, 5139351, 6852468, 10278702, 20557404]

約数ペア:

[(1, 20557404), (2, 10278702), (3, 6852468), (4, 5139351), (6, 3426234), (7, 2936772), (9, 2284156), (12, 1713117), (14, 1468386), (18, 1142078), (21, 978924), (28, 734193), (29, 708876), (36, 571039), (42, 489462), (58, 354438), (63, 326308), (84, 244731), (87, 236292), (97, 211932), (116, 177219), (126, 163154), (174, 118146), (194, 105966), (203, 101268), (252, 81577), (261, 78764), (291, 70644), (348, 59073), (388, 52983), (406, 50634), (522, 39382), (582, 35322), (609, 33756), (679, 30276), (812, 25317), (841, 24444), (873, 23548), (1044, 19691), (1164, 17661), (1218, 16878), (1358, 15138), (1682, 12222), (1746, 11774), (1827, 11252), (2037, 10092), (2436, 8439), (2523, 8148), (2716, 7569), (2813, 7308), (3364, 6111), (3492, 5887), (3654, 5626), (4074, 5046)]