19809726

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 44815680

約数和(自身を除く): 25005954

約数列:

[1, 2, 3, 6, 17, 29, 34, 37, 51, 58, 74, 87, 102, 111, 174, 181, 222, 362, 493, 543, 629, 986, 1073, 1086, 1258, 1479, 1887, 2146, 2958, 3077, 3219, 3774, 5249, 6154, 6438, 6697, 9231, 10498, 13394, 15747, 18241, 18462, 20091, 31494, 36482, 40182, 54723, 89233, 109446, 113849, 178466, 194213, 227698, 267699, 341547, 388426, 535398, 582639, 683094, 1165278, 3301621, 6603242, 9904863, 19809726]

約数ペア:

[(1, 19809726), (2, 9904863), (3, 6603242), (6, 3301621), (17, 1165278), (29, 683094), (34, 582639), (37, 535398), (51, 388426), (58, 341547), (74, 267699), (87, 227698), (102, 194213), (111, 178466), (174, 113849), (181, 109446), (222, 89233), (362, 54723), (493, 40182), (543, 36482), (629, 31494), (986, 20091), (1073, 18462), (1086, 18241), (1258, 15747), (1479, 13394), (1887, 10498), (2146, 9231), (2958, 6697), (3077, 6438), (3219, 6154), (3774, 5249)]