221996775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2957}}^1$

素因数の和:3001

約数の個数: 96

約数和(自身を含む): 492968448

約数和(自身を除く): 270971673

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 25, 33, 35, 39, 55, 65, 75, 77, 91, 105, 143, 165, 175, 195, 231, 273, 275, 325, 385, 429, 455, 525, 715, 825, 975, 1001, 1155, 1365, 1925, 2145, 2275, 2957, 3003, 3575, 5005, 5775, 6825, 8871, 10725, 14785, 15015, 20699, 25025, 32527, 38441, 44355, 62097, 73925, 75075, 97581, 103495, 115323, 162635, 192205, 221775, 227689, 269087, 310485, 422851, 487905, 517475, 576615, 683067, 807261, 813175, 961025, 1138445, 1268553, 1345435, 1552425, 2114255, 2439525, 2883075, 2959957, 3415335, 4036305, 5692225, 6342765, 6727175, 8879871, 10571275, 14799785, 17076675, 20181525, 31713825, 44399355, 73998925, 221996775]

約数ペア:

[(1, 221996775), (3, 73998925), (5, 44399355), (7, 31713825), (11, 20181525), (13, 17076675), (15, 14799785), (21, 10571275), (25, 8879871), (33, 6727175), (35, 6342765), (39, 5692225), (55, 4036305), (65, 3415335), (75, 2959957), (77, 2883075), (91, 2439525), (105, 2114255), (143, 1552425), (165, 1345435), (175, 1268553), (195, 1138445), (231, 961025), (273, 813175), (275, 807261), (325, 683067), (385, 576615), (429, 517475), (455, 487905), (525, 422851), (715, 310485), (825, 269087), (975, 227689), (1001, 221775), (1155, 192205), (1365, 162635), (1925, 115323), (2145, 103495), (2275, 97581), (2957, 75075), (3003, 73925), (3575, 62097), (5005, 44355), (5775, 38441), (6825, 32527), (8871, 25025), (10725, 20699), (14785, 15015)]