21199152

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:718

約数の個数: 80

約数和(自身を含む): 60183648

約数和(自身を除く): 38984496

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 53, 78, 104, 106, 156, 159, 208, 212, 312, 318, 424, 624, 636, 641, 689, 848, 1272, 1282, 1378, 1923, 2067, 2544, 2564, 2756, 3846, 4134, 5128, 5512, 7692, 8268, 8333, 10256, 11024, 15384, 16536, 16666, 24999, 30768, 33072, 33332, 33973, 49998, 66664, 67946, 99996, 101919, 133328, 135892, 199992, 203838, 271784, 399984, 407676, 441649, 543568, 815352, 883298, 1324947, 1630704, 1766596, 2649894, 3533192, 5299788, 7066384, 10599576, 21199152]

約数ペア:

[(1, 21199152), (2, 10599576), (3, 7066384), (4, 5299788), (6, 3533192), (8, 2649894), (12, 1766596), (13, 1630704), (16, 1324947), (24, 883298), (26, 815352), (39, 543568), (48, 441649), (52, 407676), (53, 399984), (78, 271784), (104, 203838), (106, 199992), (156, 135892), (159, 133328), (208, 101919), (212, 99996), (312, 67946), (318, 66664), (424, 49998), (624, 33973), (636, 33332), (641, 33072), (689, 30768), (848, 24999), (1272, 16666), (1282, 16536), (1378, 15384), (1923, 11024), (2067, 10256), (2544, 8333), (2564, 8268), (2756, 7692), (3846, 5512), (4134, 5128)]