21379728

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{15359}}^1$

素因数の和:15399

約数の個数: 40

約数和(自身を含む): 57139200

約数和(自身を除く): 35759472

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 87, 116, 174, 232, 348, 464, 696, 1392, 15359, 30718, 46077, 61436, 92154, 122872, 184308, 245744, 368616, 445411, 737232, 890822, 1336233, 1781644, 2672466, 3563288, 5344932, 7126576, 10689864, 21379728]

約数ペア:

[(1, 21379728), (2, 10689864), (3, 7126576), (4, 5344932), (6, 3563288), (8, 2672466), (12, 1781644), (16, 1336233), (24, 890822), (29, 737232), (48, 445411), (58, 368616), (87, 245744), (116, 184308), (174, 122872), (232, 92154), (348, 61436), (464, 46077), (696, 30718), (1392, 15359)]