19993008

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 59559680

約数和(自身を除く): 39566672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 157, 168, 314, 336, 379, 471, 628, 758, 942, 1099, 1137, 1256, 1516, 1884, 2198, 2274, 2512, 2653, 3032, 3297, 3768, 4396, 4548, 5306, 6064, 6594, 7536, 7959, 8792, 9096, 10612, 13188, 15918, 17584, 18192, 21224, 26376, 31836, 42448, 52752, 59503, 63672, 119006, 127344, 178509, 238012, 357018, 416521, 476024, 714036, 833042, 952048, 1249563, 1428072, 1666084, 2499126, 2856144, 3332168, 4998252, 6664336, 9996504, 19993008]

約数ペア:

[(1, 19993008), (2, 9996504), (3, 6664336), (4, 4998252), (6, 3332168), (7, 2856144), (8, 2499126), (12, 1666084), (14, 1428072), (16, 1249563), (21, 952048), (24, 833042), (28, 714036), (42, 476024), (48, 416521), (56, 357018), (84, 238012), (112, 178509), (157, 127344), (168, 119006), (314, 63672), (336, 59503), (379, 52752), (471, 42448), (628, 31836), (758, 26376), (942, 21224), (1099, 18192), (1137, 17584), (1256, 15918), (1516, 13188), (1884, 10612), (2198, 9096), (2274, 8792), (2512, 7959), (2653, 7536), (3032, 6594), (3297, 6064), (3768, 5306), (4396, 4548)]