20807964

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1049}}^1$

素因数の和:1107

約数の個数: 72

約数和(自身を含む): 57330000

約数和(自身を除く): 36522036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1044, 1049, 1102, 1653, 2098, 2204, 3147, 3306, 4196, 4959, 6294, 6612, 9441, 9918, 12588, 18882, 19836, 19931, 30421, 37764, 39862, 59793, 60842, 79724, 91263, 119586, 121684, 179379, 182526, 239172, 273789, 358758, 365052, 547578, 577999, 717516, 1095156, 1155998, 1733997, 2311996, 3467994, 5201991, 6935988, 10403982, 20807964]

約数ペア:

[(1, 20807964), (2, 10403982), (3, 6935988), (4, 5201991), (6, 3467994), (9, 2311996), (12, 1733997), (18, 1155998), (19, 1095156), (29, 717516), (36, 577999), (38, 547578), (57, 365052), (58, 358758), (76, 273789), (87, 239172), (114, 182526), (116, 179379), (171, 121684), (174, 119586), (228, 91263), (261, 79724), (342, 60842), (348, 59793), (522, 39862), (551, 37764), (684, 30421), (1044, 19931), (1049, 19836), (1102, 18882), (1653, 12588), (2098, 9918), (2204, 9441), (3147, 6612), (3306, 6294), (4196, 4959)]