21053988

素因数分解:

$2^2\times 3^2\times {\mathrm{239}}^1\times {\mathrm{2447}}^1$

素因数の和:2696

約数の個数: 36

約数和(自身を含む): 53464320

約数和(自身を除く): 32410332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 239, 478, 717, 956, 1434, 2151, 2447, 2868, 4302, 4894, 7341, 8604, 9788, 14682, 22023, 29364, 44046, 88092, 584833, 1169666, 1754499, 2339332, 3508998, 5263497, 7017996, 10526994, 21053988]

約数ペア:

[(1, 21053988), (2, 10526994), (3, 7017996), (4, 5263497), (6, 3508998), (9, 2339332), (12, 1754499), (18, 1169666), (36, 584833), (239, 88092), (478, 44046), (717, 29364), (956, 22023), (1434, 14682), (2151, 9788), (2447, 8604), (2868, 7341), (4302, 4894)]