21506072

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{8171}}^1$

素因数の和:8231

約数の個数: 32

約数和(自身を含む): 47070720

約数和(自身を除く): 25564648

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 8171, 16342, 32684, 57197, 65368, 114394, 228788, 384037, 457576, 768074, 1536148, 2688259, 3072296, 5376518, 10753036, 21506072]

約数ペア:

[(1, 21506072), (2, 10753036), (4, 5376518), (7, 3072296), (8, 2688259), (14, 1536148), (28, 768074), (47, 457576), (56, 384037), (94, 228788), (188, 114394), (329, 65368), (376, 57197), (658, 32684), (1316, 16342), (2632, 8171)]