21198282

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72103}}^1$

素因数の和:72122

約数の個数: 24

約数和(自身を含む): 49319136

約数和(自身を除く): 28120854

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72103, 144206, 216309, 432618, 504721, 1009442, 1514163, 3028326, 3533047, 7066094, 10599141, 21198282]

約数ペア:

[(1, 21198282), (2, 10599141), (3, 7066094), (6, 3533047), (7, 3028326), (14, 1514163), (21, 1009442), (42, 504721), (49, 432618), (98, 216309), (147, 144206), (294, 72103)]