18329508

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 48692280

約数和(自身を除く): 30362772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 97, 116, 174, 181, 194, 261, 291, 348, 362, 388, 522, 543, 582, 724, 873, 1044, 1086, 1164, 1629, 1746, 2172, 2813, 3258, 3492, 5249, 5626, 6516, 8439, 10498, 11252, 15747, 16878, 17557, 20996, 25317, 31494, 33756, 35114, 47241, 50634, 52671, 62988, 70228, 94482, 101268, 105342, 158013, 188964, 210684, 316026, 509153, 632052, 1018306, 1527459, 2036612, 3054918, 4582377, 6109836, 9164754, 18329508]

約数ペア:

[(1, 18329508), (2, 9164754), (3, 6109836), (4, 4582377), (6, 3054918), (9, 2036612), (12, 1527459), (18, 1018306), (29, 632052), (36, 509153), (58, 316026), (87, 210684), (97, 188964), (116, 158013), (174, 105342), (181, 101268), (194, 94482), (261, 70228), (291, 62988), (348, 52671), (362, 50634), (388, 47241), (522, 35114), (543, 33756), (582, 31494), (724, 25317), (873, 20996), (1044, 17557), (1086, 16878), (1164, 15747), (1629, 11252), (1746, 10498), (2172, 8439), (2813, 6516), (3258, 5626), (3492, 5249)]