21097076

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 50050560

約数和(自身を除く): 28953484

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 121, 143, 154, 182, 242, 286, 308, 364, 479, 484, 572, 847, 958, 1001, 1573, 1694, 1916, 2002, 3146, 3353, 3388, 4004, 5269, 6227, 6292, 6706, 10538, 11011, 12454, 13412, 21076, 22022, 24908, 36883, 43589, 44044, 57959, 68497, 73766, 87178, 115918, 136994, 147532, 174356, 231836, 273988, 405713, 479479, 753467, 811426, 958958, 1506934, 1622852, 1917916, 3013868, 5274269, 10548538, 21097076]

約数ペア:

[(1, 21097076), (2, 10548538), (4, 5274269), (7, 3013868), (11, 1917916), (13, 1622852), (14, 1506934), (22, 958958), (26, 811426), (28, 753467), (44, 479479), (52, 405713), (77, 273988), (91, 231836), (121, 174356), (143, 147532), (154, 136994), (182, 115918), (242, 87178), (286, 73766), (308, 68497), (364, 57959), (479, 44044), (484, 43589), (572, 36883), (847, 24908), (958, 22022), (1001, 21076), (1573, 13412), (1694, 12454), (1916, 11011), (2002, 10538), (3146, 6706), (3353, 6292), (3388, 6227), (4004, 5269)]