19997512964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{16193}}^1$

素因数の和:16365

約数の個数: 96

約数和(自身を含む): 43877707776

約数和(自身を除く): 23880194812

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 127, 143, 187, 221, 254, 286, 374, 442, 508, 572, 748, 884, 1397, 1651, 2159, 2431, 2794, 3302, 4318, 4862, 5588, 6604, 8636, 9724, 16193, 18161, 23749, 28067, 32386, 36322, 47498, 56134, 64772, 72644, 94996, 112268, 178123, 210509, 275281, 308737, 356246, 421018, 550562, 617474, 712492, 842036, 1101124, 1234948, 2056511, 2315599, 3028091, 3578653, 4113022, 4631198, 6056182, 7157306, 8226044, 9262396, 12112364, 14314612, 22621621, 26734643, 34960687, 39365183, 45243242, 53469286, 69921374, 78730366, 90486484, 106938572, 139842748, 157460732, 294081073, 384567557, 454488931, 588162146, 769135114, 908977862, 1176324292, 1538270228, 1817955724, 4999378241, 9998756482, 19997512964]

約数ペア:

[(1, 19997512964), (2, 9998756482), (4, 4999378241), (11, 1817955724), (13, 1538270228), (17, 1176324292), (22, 908977862), (26, 769135114), (34, 588162146), (44, 454488931), (52, 384567557), (68, 294081073), (127, 157460732), (143, 139842748), (187, 106938572), (221, 90486484), (254, 78730366), (286, 69921374), (374, 53469286), (442, 45243242), (508, 39365183), (572, 34960687), (748, 26734643), (884, 22621621), (1397, 14314612), (1651, 12112364), (2159, 9262396), (2431, 8226044), (2794, 7157306), (3302, 6056182), (4318, 4631198), (4862, 4113022), (5588, 3578653), (6604, 3028091), (8636, 2315599), (9724, 2056511), (16193, 1234948), (18161, 1101124), (23749, 842036), (28067, 712492), (32386, 617474), (36322, 550562), (47498, 421018), (56134, 356246), (64772, 308737), (72644, 275281), (94996, 210509), (112268, 178123)]