20913588

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 54899208

約数和(自身を除く): 33985620

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 97, 106, 113, 159, 194, 212, 226, 291, 318, 339, 388, 452, 477, 582, 636, 678, 873, 954, 1017, 1164, 1356, 1746, 1908, 2034, 3492, 4068, 5141, 5989, 10282, 10961, 11978, 15423, 17967, 20564, 21922, 23956, 30846, 32883, 35934, 43844, 46269, 53901, 61692, 65766, 71868, 92538, 98649, 107802, 131532, 185076, 197298, 215604, 394596, 580933, 1161866, 1742799, 2323732, 3485598, 5228397, 6971196, 10456794, 20913588]

約数ペア:

[(1, 20913588), (2, 10456794), (3, 6971196), (4, 5228397), (6, 3485598), (9, 2323732), (12, 1742799), (18, 1161866), (36, 580933), (53, 394596), (97, 215604), (106, 197298), (113, 185076), (159, 131532), (194, 107802), (212, 98649), (226, 92538), (291, 71868), (318, 65766), (339, 61692), (388, 53901), (452, 46269), (477, 43844), (582, 35934), (636, 32883), (678, 30846), (873, 23956), (954, 21922), (1017, 20564), (1164, 17967), (1356, 15423), (1746, 11978), (1908, 10961), (2034, 10282), (3492, 5989), (4068, 5141)]