20213856

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5399}}^1$

素因数の和:5428

約数の個数: 72

約数和(自身を含む): 61916400

約数和(自身を除く): 41702544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5399, 10798, 16197, 21596, 32394, 43192, 48591, 64788, 70187, 86384, 97182, 129576, 140374, 172768, 194364, 210561, 259152, 280748, 388728, 421122, 518304, 561496, 631683, 777456, 842244, 1122992, 1263366, 1554912, 1684488, 2245984, 2526732, 3368976, 5053464, 6737952, 10106928, 20213856]

約数ペア:

[(1, 20213856), (2, 10106928), (3, 6737952), (4, 5053464), (6, 3368976), (8, 2526732), (9, 2245984), (12, 1684488), (13, 1554912), (16, 1263366), (18, 1122992), (24, 842244), (26, 777456), (32, 631683), (36, 561496), (39, 518304), (48, 421122), (52, 388728), (72, 280748), (78, 259152), (96, 210561), (104, 194364), (117, 172768), (144, 140374), (156, 129576), (208, 97182), (234, 86384), (288, 70187), (312, 64788), (416, 48591), (468, 43192), (624, 32394), (936, 21596), (1248, 16197), (1872, 10798), (3744, 5399)]