21015792

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{20849}}^1$

素因数の和:20870

約数の個数: 60

約数和(自身を含む): 67220400

約数和(自身を除く): 46204608

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 20849, 41698, 62547, 83396, 125094, 145943, 166792, 187641, 250188, 291886, 333584, 375282, 437829, 500376, 583772, 750564, 875658, 1000752, 1167544, 1313487, 1501128, 1751316, 2335088, 2626974, 3002256, 3502632, 5253948, 7005264, 10507896, 21015792]

約数ペア:

[(1, 21015792), (2, 10507896), (3, 7005264), (4, 5253948), (6, 3502632), (7, 3002256), (8, 2626974), (9, 2335088), (12, 1751316), (14, 1501128), (16, 1313487), (18, 1167544), (21, 1000752), (24, 875658), (28, 750564), (36, 583772), (42, 500376), (48, 437829), (56, 375282), (63, 333584), (72, 291886), (84, 250188), (112, 187641), (126, 166792), (144, 145943), (168, 125094), (252, 83396), (336, 62547), (504, 41698), (1008, 20849)]