19405815

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 37255680

約数和(自身を除く): 17849865

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 83, 109, 143, 165, 195, 249, 327, 415, 429, 545, 715, 913, 1079, 1199, 1245, 1417, 1635, 2145, 2739, 3237, 3597, 4251, 4565, 5395, 5995, 7085, 9047, 11869, 13695, 15587, 16185, 17985, 21255, 27141, 35607, 45235, 46761, 59345, 77935, 99517, 117611, 135705, 178035, 233805, 298551, 352833, 497585, 588055, 1293721, 1492755, 1764165, 3881163, 6468605, 19405815]

約数ペア:

[(1, 19405815), (3, 6468605), (5, 3881163), (11, 1764165), (13, 1492755), (15, 1293721), (33, 588055), (39, 497585), (55, 352833), (65, 298551), (83, 233805), (109, 178035), (143, 135705), (165, 117611), (195, 99517), (249, 77935), (327, 59345), (415, 46761), (429, 45235), (545, 35607), (715, 27141), (913, 21255), (1079, 17985), (1199, 16185), (1245, 15587), (1417, 13695), (1635, 11869), (2145, 9047), (2739, 7085), (3237, 5995), (3597, 5395), (4251, 4565)]