19100025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 39900224

約数和(自身を除く): 20800199

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 67, 75, 105, 175, 181, 201, 225, 315, 335, 469, 525, 543, 603, 905, 1005, 1267, 1407, 1575, 1629, 1675, 2345, 2715, 3015, 3801, 4221, 4525, 5025, 6335, 7035, 8145, 11403, 11725, 12127, 13575, 15075, 19005, 21105, 31675, 35175, 36381, 40725, 57015, 60635, 84889, 95025, 105525, 109143, 181905, 254667, 285075, 303175, 424445, 545715, 764001, 909525, 1273335, 2122225, 2728575, 3820005, 6366675, 19100025]

約数ペア:

[(1, 19100025), (3, 6366675), (5, 3820005), (7, 2728575), (9, 2122225), (15, 1273335), (21, 909525), (25, 764001), (35, 545715), (45, 424445), (63, 303175), (67, 285075), (75, 254667), (105, 181905), (175, 109143), (181, 105525), (201, 95025), (225, 84889), (315, 60635), (335, 57015), (469, 40725), (525, 36381), (543, 35175), (603, 31675), (905, 21105), (1005, 19005), (1267, 15075), (1407, 13575), (1575, 12127), (1629, 11725), (1675, 11403), (2345, 8145), (2715, 7035), (3015, 6335), (3801, 5025), (4221, 4525)]