20219148

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 53660880

約数和(自身を除く): 33441732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 107, 116, 174, 181, 214, 261, 321, 348, 362, 428, 522, 543, 642, 724, 963, 1044, 1086, 1284, 1629, 1926, 2172, 3103, 3258, 3852, 5249, 6206, 6516, 9309, 10498, 12412, 15747, 18618, 19367, 20996, 27927, 31494, 37236, 38734, 47241, 55854, 58101, 62988, 77468, 94482, 111708, 116202, 174303, 188964, 232404, 348606, 561643, 697212, 1123286, 1684929, 2246572, 3369858, 5054787, 6739716, 10109574, 20219148]

約数ペア:

[(1, 20219148), (2, 10109574), (3, 6739716), (4, 5054787), (6, 3369858), (9, 2246572), (12, 1684929), (18, 1123286), (29, 697212), (36, 561643), (58, 348606), (87, 232404), (107, 188964), (116, 174303), (174, 116202), (181, 111708), (214, 94482), (261, 77468), (321, 62988), (348, 58101), (362, 55854), (428, 47241), (522, 38734), (543, 37236), (642, 31494), (724, 27927), (963, 20996), (1044, 19367), (1086, 18618), (1284, 15747), (1629, 12412), (1926, 10498), (2172, 9309), (3103, 6516), (3258, 6206), (3852, 5249)]