20976852

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2861}}^1$

素因数の和:2928

約数の個数: 48

約数和(自身を含む): 53851392

約数和(自身を除く): 32874540

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 188, 282, 564, 611, 1222, 1833, 2444, 2861, 3666, 5722, 7332, 8583, 11444, 17166, 34332, 37193, 74386, 111579, 134467, 148772, 223158, 268934, 403401, 446316, 537868, 806802, 1613604, 1748071, 3496142, 5244213, 6992284, 10488426, 20976852]

約数ペア:

[(1, 20976852), (2, 10488426), (3, 6992284), (4, 5244213), (6, 3496142), (12, 1748071), (13, 1613604), (26, 806802), (39, 537868), (47, 446316), (52, 403401), (78, 268934), (94, 223158), (141, 148772), (156, 134467), (188, 111579), (282, 74386), (564, 37193), (611, 34332), (1222, 17166), (1833, 11444), (2444, 8583), (2861, 7332), (3666, 5722)]