19491984

素因数分解:

$2^4\times 3^2\times {\mathrm{223}}^1\times {\mathrm{607}}^1$

素因数の和:844

約数の個数: 60

約数和(自身を含む): 54885376

約数和(自身を除く): 35393392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 223, 446, 607, 669, 892, 1214, 1338, 1784, 1821, 2007, 2428, 2676, 3568, 3642, 4014, 4856, 5352, 5463, 7284, 8028, 9712, 10704, 10926, 14568, 16056, 21852, 29136, 32112, 43704, 87408, 135361, 270722, 406083, 541444, 812166, 1082888, 1218249, 1624332, 2165776, 2436498, 3248664, 4872996, 6497328, 9745992, 19491984]

約数ペア:

[(1, 19491984), (2, 9745992), (3, 6497328), (4, 4872996), (6, 3248664), (8, 2436498), (9, 2165776), (12, 1624332), (16, 1218249), (18, 1082888), (24, 812166), (36, 541444), (48, 406083), (72, 270722), (144, 135361), (223, 87408), (446, 43704), (607, 32112), (669, 29136), (892, 21852), (1214, 16056), (1338, 14568), (1784, 10926), (1821, 10704), (2007, 9712), (2428, 8028), (2676, 7284), (3568, 5463), (3642, 5352), (4014, 4856)]