21575884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 43858080

約数和(自身を除く): 22282196

約数列:

[1, 2, 4, 11, 22, 29, 37, 44, 58, 74, 116, 148, 319, 407, 457, 638, 814, 914, 1073, 1276, 1628, 1828, 2146, 4292, 5027, 10054, 11803, 13253, 16909, 20108, 23606, 26506, 33818, 47212, 53012, 67636, 145783, 185999, 291566, 371998, 490361, 583132, 743996, 980722, 1961444, 5393971, 10787942, 21575884]

約数ペア:

[(1, 21575884), (2, 10787942), (4, 5393971), (11, 1961444), (22, 980722), (29, 743996), (37, 583132), (44, 490361), (58, 371998), (74, 291566), (116, 185999), (148, 145783), (319, 67636), (407, 53012), (457, 47212), (638, 33818), (814, 26506), (914, 23606), (1073, 20108), (1276, 16909), (1628, 13253), (1828, 11803), (2146, 10054), (4292, 5027)]