21700872

素因数分解:

$2^3\times 3^6\times {\mathrm{61}}^2$

素因数の和:146

約数の個数: 84

約数和(自身を含む): 62022285

約数和(自身を除く): 40321413

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 61, 72, 81, 108, 122, 162, 183, 216, 243, 244, 324, 366, 486, 488, 549, 648, 729, 732, 972, 1098, 1458, 1464, 1647, 1944, 2196, 2916, 3294, 3721, 4392, 4941, 5832, 6588, 7442, 9882, 11163, 13176, 14823, 14884, 19764, 22326, 29646, 29768, 33489, 39528, 44469, 44652, 59292, 66978, 88938, 89304, 100467, 118584, 133956, 177876, 200934, 267912, 301401, 355752, 401868, 602802, 803736, 904203, 1205604, 1808406, 2411208, 2712609, 3616812, 5425218, 7233624, 10850436, 21700872]

約数ペア:

[(1, 21700872), (2, 10850436), (3, 7233624), (4, 5425218), (6, 3616812), (8, 2712609), (9, 2411208), (12, 1808406), (18, 1205604), (24, 904203), (27, 803736), (36, 602802), (54, 401868), (61, 355752), (72, 301401), (81, 267912), (108, 200934), (122, 177876), (162, 133956), (183, 118584), (216, 100467), (243, 89304), (244, 88938), (324, 66978), (366, 59292), (486, 44652), (488, 44469), (549, 39528), (648, 33489), (729, 29768), (732, 29646), (972, 22326), (1098, 19764), (1458, 14884), (1464, 14823), (1647, 13176), (1944, 11163), (2196, 9882), (2916, 7442), (3294, 6588), (3721, 5832), (4392, 4941)]