21308976

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11383}}^1$

素因数の和:11410

約数の個数: 60

約数和(自身を含む): 64228528

約数和(自身を除く): 42919552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11383, 22766, 34149, 45532, 68298, 91064, 102447, 136596, 147979, 182128, 204894, 273192, 295958, 409788, 443937, 546384, 591916, 819576, 887874, 1183832, 1331811, 1639152, 1775748, 2367664, 2663622, 3551496, 5327244, 7102992, 10654488, 21308976]

約数ペア:

[(1, 21308976), (2, 10654488), (3, 7102992), (4, 5327244), (6, 3551496), (8, 2663622), (9, 2367664), (12, 1775748), (13, 1639152), (16, 1331811), (18, 1183832), (24, 887874), (26, 819576), (36, 591916), (39, 546384), (48, 443937), (52, 409788), (72, 295958), (78, 273192), (104, 204894), (117, 182128), (144, 147979), (156, 136596), (208, 102447), (234, 91064), (312, 68298), (468, 45532), (624, 34149), (936, 22766), (1872, 11383)]