21475636

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1439}}^1$

素因数の和:1504

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 25940684

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 182, 287, 364, 533, 574, 1066, 1148, 1439, 2132, 2878, 3731, 5756, 7462, 10073, 14924, 18707, 20146, 37414, 40292, 58999, 74828, 117998, 130949, 235996, 261898, 412993, 523796, 766987, 825986, 1533974, 1651972, 3067948, 5368909, 10737818, 21475636]

約数ペア:

[(1, 21475636), (2, 10737818), (4, 5368909), (7, 3067948), (13, 1651972), (14, 1533974), (26, 825986), (28, 766987), (41, 523796), (52, 412993), (82, 261898), (91, 235996), (164, 130949), (182, 117998), (287, 74828), (364, 58999), (533, 40292), (574, 37414), (1066, 20146), (1148, 18707), (1439, 14924), (2132, 10073), (2878, 7462), (3731, 5756)]