21167976488

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{111509}}^1$

素因数の和:111965

約数の個数: 32

約数和(自身を含む): 40444677000

約数和(自身を除く): 19276700512

約数列:

[1, 2, 4, 8, 61, 122, 244, 389, 488, 778, 1556, 3112, 23729, 47458, 94916, 111509, 189832, 223018, 446036, 892072, 6802049, 13604098, 27208196, 43377001, 54416392, 86754002, 173508004, 347016008, 2645997061, 5291994122, 10583988244, 21167976488]

約数ペア:

[(1, 21167976488), (2, 10583988244), (4, 5291994122), (8, 2645997061), (61, 347016008), (122, 173508004), (244, 86754002), (389, 54416392), (488, 43377001), (778, 27208196), (1556, 13604098), (3112, 6802049), (23729, 892072), (47458, 446036), (94916, 223018), (111509, 189832)]