18644667745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{61091}}^1$

素因数の和:61317

約数の個数: 32

約数和(自身を含む): 25336074240

約数和(自身を除く): 6691406495

約数列:

[1, 5, 11, 31, 55, 155, 179, 341, 895, 1705, 1969, 5549, 9845, 27745, 61039, 61091, 305195, 305455, 672001, 1893821, 3360005, 9469105, 10935289, 20832031, 54676445, 104160155, 120288179, 338993959, 601440895, 1694969795, 3728933549, 18644667745]

約数ペア:

[(1, 18644667745), (5, 3728933549), (11, 1694969795), (31, 601440895), (55, 338993959), (155, 120288179), (179, 104160155), (341, 54676445), (895, 20832031), (1705, 10935289), (1969, 9469105), (5549, 3360005), (9845, 1893821), (27745, 672001), (61039, 305455), (61091, 305195)]