21291456

素因数分解:

$2^6\times 3^1\times {\mathrm{173}}^1\times {\mathrm{641}}^1$

素因数の和:829

約数の個数: 56

約数和(自身を含む): 56747664

約数和(自身を除く): 35456208

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 173, 192, 346, 519, 641, 692, 1038, 1282, 1384, 1923, 2076, 2564, 2768, 3846, 4152, 5128, 5536, 7692, 8304, 10256, 11072, 15384, 16608, 20512, 30768, 33216, 41024, 61536, 110893, 123072, 221786, 332679, 443572, 665358, 887144, 1330716, 1774288, 2661432, 3548576, 5322864, 7097152, 10645728, 21291456]

約数ペア:

[(1, 21291456), (2, 10645728), (3, 7097152), (4, 5322864), (6, 3548576), (8, 2661432), (12, 1774288), (16, 1330716), (24, 887144), (32, 665358), (48, 443572), (64, 332679), (96, 221786), (173, 123072), (192, 110893), (346, 61536), (519, 41024), (641, 33216), (692, 30768), (1038, 20512), (1282, 16608), (1384, 15384), (1923, 11072), (2076, 10256), (2564, 8304), (2768, 7692), (3846, 5536), (4152, 5128)]