20191455

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 36682464

約数和(自身を除く): 16491009

約数列:

[1, 3, 5, 9, 15, 37, 45, 67, 111, 181, 185, 201, 333, 335, 543, 555, 603, 905, 1005, 1629, 1665, 2479, 2715, 3015, 6697, 7437, 8145, 12127, 12395, 20091, 22311, 33485, 36381, 37185, 60273, 60635, 100455, 109143, 111555, 181905, 301365, 448699, 545715, 1346097, 2243495, 4038291, 6730485, 20191455]

約数ペア:

[(1, 20191455), (3, 6730485), (5, 4038291), (9, 2243495), (15, 1346097), (37, 545715), (45, 448699), (67, 301365), (111, 181905), (181, 111555), (185, 109143), (201, 100455), (333, 60635), (335, 60273), (543, 37185), (555, 36381), (603, 33485), (905, 22311), (1005, 20091), (1629, 12395), (1665, 12127), (2479, 8145), (2715, 7437), (3015, 6697)]