21784308

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19949}}^1$

素因数の和:19976

約数の個数: 48

約数和(自身を含む): 62563200

約数和(自身を除く): 40778892

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19949, 39898, 59847, 79796, 119694, 139643, 239388, 259337, 279286, 418929, 518674, 558572, 778011, 837858, 1037348, 1556022, 1675716, 1815359, 3112044, 3630718, 5446077, 7261436, 10892154, 21784308]

約数ペア:

[(1, 21784308), (2, 10892154), (3, 7261436), (4, 5446077), (6, 3630718), (7, 3112044), (12, 1815359), (13, 1675716), (14, 1556022), (21, 1037348), (26, 837858), (28, 778011), (39, 558572), (42, 518674), (52, 418929), (78, 279286), (84, 259337), (91, 239388), (156, 139643), (182, 119694), (273, 79796), (364, 59847), (546, 39898), (1092, 19949)]