20515242

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 47628288

約数和(自身を除く): 27113046

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 37, 62, 66, 74, 93, 111, 186, 222, 271, 341, 407, 542, 682, 813, 814, 1023, 1147, 1221, 1626, 2046, 2294, 2442, 2981, 3441, 5962, 6882, 8401, 8943, 10027, 12617, 16802, 17886, 20054, 25203, 25234, 30081, 37851, 50406, 60162, 75702, 92411, 110297, 184822, 220594, 277233, 310837, 330891, 554466, 621674, 661782, 932511, 1865022, 3419207, 6838414, 10257621, 20515242]

約数ペア:

[(1, 20515242), (2, 10257621), (3, 6838414), (6, 3419207), (11, 1865022), (22, 932511), (31, 661782), (33, 621674), (37, 554466), (62, 330891), (66, 310837), (74, 277233), (93, 220594), (111, 184822), (186, 110297), (222, 92411), (271, 75702), (341, 60162), (407, 50406), (542, 37851), (682, 30081), (813, 25234), (814, 25203), (1023, 20054), (1147, 17886), (1221, 16802), (1626, 12617), (2046, 10027), (2294, 8943), (2442, 8401), (2981, 6882), (3441, 5962)]