21902678

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{463}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 39198720

約数和(自身を除く): 17296042

約数列:

[1, 2, 7, 14, 31, 62, 109, 217, 218, 434, 463, 763, 926, 1526, 3241, 3379, 6482, 6758, 14353, 23653, 28706, 47306, 50467, 100471, 100934, 200942, 353269, 706538, 1564477, 3128954, 10951339, 21902678]

約数ペア:

[(1, 21902678), (2, 10951339), (7, 3128954), (14, 1564477), (31, 706538), (62, 353269), (109, 200942), (217, 100934), (218, 100471), (434, 50467), (463, 47306), (763, 28706), (926, 23653), (1526, 14353), (3241, 6758), (3379, 6482)]