21335888

素因数分解:

$2^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{967}}^1$

素因数の和:1179

約数の個数: 40

約数和(自身を含む): 47532672

約数和(自身を除く): 26196784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 197, 394, 788, 967, 1379, 1576, 1934, 2758, 3152, 3868, 5516, 6769, 7736, 11032, 13538, 15472, 22064, 27076, 54152, 108304, 190499, 380998, 761996, 1333493, 1523992, 2666986, 3047984, 5333972, 10667944, 21335888]

約数ペア:

[(1, 21335888), (2, 10667944), (4, 5333972), (7, 3047984), (8, 2666986), (14, 1523992), (16, 1333493), (28, 761996), (56, 380998), (112, 190499), (197, 108304), (394, 54152), (788, 27076), (967, 22064), (1379, 15472), (1576, 13538), (1934, 11032), (2758, 7736), (3152, 6769), (3868, 5516)]