21386050

素因数分解:

$2^1\times 5^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:105

約数の個数: 96

約数和(自身を含む): 49104000

約数和(自身を除く): 27717950

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 43, 49, 50, 58, 70, 86, 98, 145, 175, 203, 215, 245, 290, 301, 343, 350, 406, 430, 490, 602, 686, 725, 1015, 1075, 1225, 1247, 1421, 1450, 1505, 1715, 2030, 2107, 2150, 2450, 2494, 2842, 3010, 3430, 4214, 5075, 6235, 7105, 7525, 8575, 8729, 9947, 10150, 10535, 12470, 14210, 14749, 15050, 17150, 17458, 19894, 21070, 29498, 31175, 35525, 43645, 49735, 52675, 61103, 62350, 71050, 73745, 87290, 99470, 105350, 122206, 147490, 218225, 248675, 305515, 368725, 427721, 436450, 497350, 611030, 737450, 855442, 1527575, 2138605, 3055150, 4277210, 10693025, 21386050]

約数ペア:

[(1, 21386050), (2, 10693025), (5, 4277210), (7, 3055150), (10, 2138605), (14, 1527575), (25, 855442), (29, 737450), (35, 611030), (43, 497350), (49, 436450), (50, 427721), (58, 368725), (70, 305515), (86, 248675), (98, 218225), (145, 147490), (175, 122206), (203, 105350), (215, 99470), (245, 87290), (290, 73745), (301, 71050), (343, 62350), (350, 61103), (406, 52675), (430, 49735), (490, 43645), (602, 35525), (686, 31175), (725, 29498), (1015, 21070), (1075, 19894), (1225, 17458), (1247, 17150), (1421, 15050), (1450, 14749), (1505, 14210), (1715, 12470), (2030, 10535), (2107, 10150), (2150, 9947), (2450, 8729), (2494, 8575), (2842, 7525), (3010, 7105), (3430, 6235), (4214, 5075)]