20919696

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2707}}^1$

素因数の和:2748

約数の個数: 80

約数和(自身を含む): 64472064

約数和(自身を除く): 43552368

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 42, 46, 48, 56, 69, 84, 92, 112, 138, 161, 168, 184, 276, 322, 336, 368, 483, 552, 644, 966, 1104, 1288, 1932, 2576, 2707, 3864, 5414, 7728, 8121, 10828, 16242, 18949, 21656, 32484, 37898, 43312, 56847, 62261, 64968, 75796, 113694, 124522, 129936, 151592, 186783, 227388, 249044, 303184, 373566, 435827, 454776, 498088, 747132, 871654, 909552, 996176, 1307481, 1494264, 1743308, 2614962, 2988528, 3486616, 5229924, 6973232, 10459848, 20919696]

約数ペア:

[(1, 20919696), (2, 10459848), (3, 6973232), (4, 5229924), (6, 3486616), (7, 2988528), (8, 2614962), (12, 1743308), (14, 1494264), (16, 1307481), (21, 996176), (23, 909552), (24, 871654), (28, 747132), (42, 498088), (46, 454776), (48, 435827), (56, 373566), (69, 303184), (84, 249044), (92, 227388), (112, 186783), (138, 151592), (161, 129936), (168, 124522), (184, 113694), (276, 75796), (322, 64968), (336, 62261), (368, 56847), (483, 43312), (552, 37898), (644, 32484), (966, 21656), (1104, 18949), (1288, 16242), (1932, 10828), (2576, 8121), (2707, 7728), (3864, 5414)]