21646196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 46484928

約数和(自身を除く): 24838732

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 71, 82, 142, 143, 164, 169, 284, 286, 338, 451, 533, 572, 676, 781, 902, 923, 1066, 1562, 1804, 1846, 1859, 2132, 2911, 3124, 3692, 3718, 5822, 5863, 6929, 7436, 10153, 11644, 11726, 11999, 13858, 20306, 23452, 23998, 27716, 32021, 37843, 40612, 47996, 64042, 75686, 76219, 128084, 131989, 151372, 152438, 263978, 304876, 416273, 491959, 527956, 832546, 983918, 1665092, 1967836, 5411549, 10823098, 21646196]

約数ペア:

[(1, 21646196), (2, 10823098), (4, 5411549), (11, 1967836), (13, 1665092), (22, 983918), (26, 832546), (41, 527956), (44, 491959), (52, 416273), (71, 304876), (82, 263978), (142, 152438), (143, 151372), (164, 131989), (169, 128084), (284, 76219), (286, 75686), (338, 64042), (451, 47996), (533, 40612), (572, 37843), (676, 32021), (781, 27716), (902, 23998), (923, 23452), (1066, 20306), (1562, 13858), (1804, 11999), (1846, 11726), (1859, 11644), (2132, 10153), (2911, 7436), (3124, 6929), (3692, 5863), (3718, 5822)]