21858642

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{857}}^1$

素因数の和:987

約数の個数: 48

約数和(自身を含む): 51531480

約数和(自身を除く): 29672838

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 109, 117, 218, 234, 327, 654, 857, 981, 1417, 1714, 1962, 2571, 2834, 4251, 5142, 7713, 8502, 11141, 12753, 15426, 22282, 25506, 33423, 66846, 93413, 100269, 186826, 200538, 280239, 560478, 840717, 1214369, 1681434, 2428738, 3643107, 7286214, 10929321, 21858642]

約数ペア:

[(1, 21858642), (2, 10929321), (3, 7286214), (6, 3643107), (9, 2428738), (13, 1681434), (18, 1214369), (26, 840717), (39, 560478), (78, 280239), (109, 200538), (117, 186826), (218, 100269), (234, 93413), (327, 66846), (654, 33423), (857, 25506), (981, 22282), (1417, 15426), (1714, 12753), (1962, 11141), (2571, 8502), (2834, 7713), (4251, 5142)]