21428286

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2179}}^1$

素因数の和:2344

約数の個数: 32

約数和(自身を含む): 47088000

約数和(自身を除く): 25659714

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 149, 298, 447, 894, 1639, 2179, 3278, 4358, 4917, 6537, 9834, 13074, 23969, 47938, 71907, 143814, 324671, 649342, 974013, 1948026, 3571381, 7142762, 10714143, 21428286]

約数ペア:

[(1, 21428286), (2, 10714143), (3, 7142762), (6, 3571381), (11, 1948026), (22, 974013), (33, 649342), (66, 324671), (149, 143814), (298, 71907), (447, 47938), (894, 23969), (1639, 13074), (2179, 9834), (3278, 6537), (4358, 4917)]