20685368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6353}}^1$

素因数の和:6407

約数の個数: 32

約数和(自身を含む): 43461360

約数和(自身を除く): 22775992

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 6353, 12706, 25412, 50824, 69883, 139766, 235061, 279532, 470122, 559064, 940244, 1880488, 2585671, 5171342, 10342684, 20685368]

約数ペア:

[(1, 20685368), (2, 10342684), (4, 5171342), (8, 2585671), (11, 1880488), (22, 940244), (37, 559064), (44, 470122), (74, 279532), (88, 235061), (148, 139766), (296, 69883), (407, 50824), (814, 25412), (1628, 12706), (3256, 6353)]