221405716

素因数分解:

$2^2\times 7^2\times {\mathrm{79}}^2\times {\mathrm{181}}^1$

素因数の和:357

約数の個数: 54

約数和(自身を含む): 459018378

約数和(自身を除く): 237612662

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 181, 196, 316, 362, 553, 724, 1106, 1267, 2212, 2534, 3871, 5068, 6241, 7742, 8869, 12482, 14299, 15484, 17738, 24964, 28598, 35476, 43687, 57196, 87374, 100093, 174748, 200186, 305809, 400372, 611618, 700651, 1129621, 1223236, 1401302, 2259242, 2802604, 4518484, 7907347, 15814694, 31629388, 55351429, 110702858, 221405716]

約数ペア:

[(1, 221405716), (2, 110702858), (4, 55351429), (7, 31629388), (14, 15814694), (28, 7907347), (49, 4518484), (79, 2802604), (98, 2259242), (158, 1401302), (181, 1223236), (196, 1129621), (316, 700651), (362, 611618), (553, 400372), (724, 305809), (1106, 200186), (1267, 174748), (2212, 100093), (2534, 87374), (3871, 57196), (5068, 43687), (6241, 35476), (7742, 28598), (8869, 24964), (12482, 17738), (14299, 15484)]