21788936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 24478264

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 59, 67, 104, 106, 118, 134, 212, 236, 268, 424, 472, 536, 689, 767, 871, 1378, 1534, 1742, 2756, 3068, 3127, 3484, 3551, 3953, 5512, 6136, 6254, 6968, 7102, 7906, 12508, 14204, 15812, 25016, 28408, 31624, 40651, 46163, 51389, 81302, 92326, 102778, 162604, 184652, 205556, 209509, 325208, 369304, 411112, 419018, 838036, 1676072, 2723617, 5447234, 10894468, 21788936]

約数ペア:

[(1, 21788936), (2, 10894468), (4, 5447234), (8, 2723617), (13, 1676072), (26, 838036), (52, 419018), (53, 411112), (59, 369304), (67, 325208), (104, 209509), (106, 205556), (118, 184652), (134, 162604), (212, 102778), (236, 92326), (268, 81302), (424, 51389), (472, 46163), (536, 40651), (689, 31624), (767, 28408), (871, 25016), (1378, 15812), (1534, 14204), (1742, 12508), (2756, 7906), (3068, 7102), (3127, 6968), (3484, 6254), (3551, 6136), (3953, 5512)]