19917216

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{6287}}^1$

素因数の和:6314

約数の個数: 72

約数和(自身を含む): 61798464

約数和(自身を除く): 41881248

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 66, 72, 88, 96, 99, 132, 144, 176, 198, 264, 288, 352, 396, 528, 792, 1056, 1584, 3168, 6287, 12574, 18861, 25148, 37722, 50296, 56583, 69157, 75444, 100592, 113166, 138314, 150888, 201184, 207471, 226332, 276628, 301776, 414942, 452664, 553256, 603552, 622413, 829884, 905328, 1106512, 1244826, 1659768, 1810656, 2213024, 2489652, 3319536, 4979304, 6639072, 9958608, 19917216]

約数ペア:

[(1, 19917216), (2, 9958608), (3, 6639072), (4, 4979304), (6, 3319536), (8, 2489652), (9, 2213024), (11, 1810656), (12, 1659768), (16, 1244826), (18, 1106512), (22, 905328), (24, 829884), (32, 622413), (33, 603552), (36, 553256), (44, 452664), (48, 414942), (66, 301776), (72, 276628), (88, 226332), (96, 207471), (99, 201184), (132, 150888), (144, 138314), (176, 113166), (198, 100592), (264, 75444), (288, 69157), (352, 56583), (396, 50296), (528, 37722), (792, 25148), (1056, 18861), (1584, 12574), (3168, 6287)]