21245172

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8011}}^1$

素因数の和:8048

約数の個数: 48

約数和(自身を含む): 56532672

約数和(自身を除く): 35287500

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 442, 663, 884, 1326, 2652, 8011, 16022, 24033, 32044, 48066, 96132, 104143, 136187, 208286, 272374, 312429, 408561, 416572, 544748, 624858, 817122, 1249716, 1634244, 1770431, 3540862, 5311293, 7081724, 10622586, 21245172]

約数ペア:

[(1, 21245172), (2, 10622586), (3, 7081724), (4, 5311293), (6, 3540862), (12, 1770431), (13, 1634244), (17, 1249716), (26, 817122), (34, 624858), (39, 544748), (51, 416572), (52, 408561), (68, 312429), (78, 272374), (102, 208286), (156, 136187), (204, 104143), (221, 96132), (442, 48066), (663, 32044), (884, 24033), (1326, 16022), (2652, 8011)]