28138383

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 55351296

約数和(自身を除く): 27212913

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 43, 47, 51, 63, 91, 117, 119, 129, 141, 153, 221, 273, 301, 329, 357, 387, 423, 559, 611, 663, 731, 799, 819, 903, 987, 1071, 1547, 1677, 1833, 1989, 2021, 2193, 2397, 2709, 2961, 3913, 4277, 4641, 5031, 5117, 5499, 5593, 6063, 6579, 7191, 9503, 10387, 11739, 12831, 13923, 14147, 15351, 16779, 18189, 26273, 28509, 31161, 34357, 35217, 38493, 42441, 46053, 50337, 66521, 72709, 78819, 85527, 93483, 103071, 127323, 183911, 199563, 218127, 236457, 240499, 309213, 446641, 551733, 598689, 654381, 721497, 1339923, 1655199, 2164491, 3126487, 4019769, 9379461, 28138383]

約数ペア:

[(1, 28138383), (3, 9379461), (7, 4019769), (9, 3126487), (13, 2164491), (17, 1655199), (21, 1339923), (39, 721497), (43, 654381), (47, 598689), (51, 551733), (63, 446641), (91, 309213), (117, 240499), (119, 236457), (129, 218127), (141, 199563), (153, 183911), (221, 127323), (273, 103071), (301, 93483), (329, 85527), (357, 78819), (387, 72709), (423, 66521), (559, 50337), (611, 46053), (663, 42441), (731, 38493), (799, 35217), (819, 34357), (903, 31161), (987, 28509), (1071, 26273), (1547, 18189), (1677, 16779), (1833, 15351), (1989, 14147), (2021, 13923), (2193, 12831), (2397, 11739), (2709, 10387), (2961, 9503), (3913, 7191), (4277, 6579), (4641, 6063), (5031, 5593), (5117, 5499)]