21966420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{52301}}^1$

素因数の和:52320

約数の個数: 48

約数和(自身を含む): 70293888

約数和(自身を除く): 48327468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 52301, 104602, 156903, 209204, 261505, 313806, 366107, 523010, 627612, 732214, 784515, 1046020, 1098321, 1464428, 1569030, 1830535, 2196642, 3138060, 3661070, 4393284, 5491605, 7322140, 10983210, 21966420]

約数ペア:

[(1, 21966420), (2, 10983210), (3, 7322140), (4, 5491605), (5, 4393284), (6, 3661070), (7, 3138060), (10, 2196642), (12, 1830535), (14, 1569030), (15, 1464428), (20, 1098321), (21, 1046020), (28, 784515), (30, 732214), (35, 627612), (42, 523010), (60, 366107), (70, 313806), (84, 261505), (105, 209204), (140, 156903), (210, 104602), (420, 52301)]