21248724

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1931}}^1$

素因数の和:2076

約数の個数: 48

約数和(自身を含む): 57125376

約数和(自身を除く): 35876652

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 131, 262, 393, 524, 786, 917, 1572, 1834, 1931, 2751, 3668, 3862, 5502, 5793, 7724, 11004, 11586, 13517, 23172, 27034, 40551, 54068, 81102, 162204, 252961, 505922, 758883, 1011844, 1517766, 1770727, 3035532, 3541454, 5312181, 7082908, 10624362, 21248724]

約数ペア:

[(1, 21248724), (2, 10624362), (3, 7082908), (4, 5312181), (6, 3541454), (7, 3035532), (12, 1770727), (14, 1517766), (21, 1011844), (28, 758883), (42, 505922), (84, 252961), (131, 162204), (262, 81102), (393, 54068), (524, 40551), (786, 27034), (917, 23172), (1572, 13517), (1834, 11586), (1931, 11004), (2751, 7724), (3668, 5793), (3862, 5502)]