19914525

素因数分解:

$3^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 48

約数和(自身を含む): 37011520

約数和(自身を除く): 17096995

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 163, 181, 225, 489, 543, 675, 815, 905, 1467, 1629, 2445, 2715, 4075, 4401, 4525, 4887, 7335, 8145, 12225, 13575, 22005, 24435, 29503, 36675, 40725, 88509, 110025, 122175, 147515, 265527, 442545, 737575, 796581, 1327635, 2212725, 3982905, 6638175, 19914525]

約数ペア:

[(1, 19914525), (3, 6638175), (5, 3982905), (9, 2212725), (15, 1327635), (25, 796581), (27, 737575), (45, 442545), (75, 265527), (135, 147515), (163, 122175), (181, 110025), (225, 88509), (489, 40725), (543, 36675), (675, 29503), (815, 24435), (905, 22005), (1467, 13575), (1629, 12225), (2445, 8145), (2715, 7335), (4075, 4887), (4401, 4525)]