19874946

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 49593600

約数和(自身を除く): 29718654

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 89, 91, 178, 182, 267, 273, 409, 534, 546, 623, 818, 1157, 1227, 1246, 1869, 2314, 2454, 2863, 3471, 3738, 5317, 5726, 6942, 8099, 8589, 10634, 15951, 16198, 17178, 24297, 31902, 36401, 37219, 48594, 72802, 74438, 109203, 111657, 218406, 223314, 254807, 473213, 509614, 764421, 946426, 1419639, 1528842, 2839278, 3312491, 6624982, 9937473, 19874946]

約数ペア:

[(1, 19874946), (2, 9937473), (3, 6624982), (6, 3312491), (7, 2839278), (13, 1528842), (14, 1419639), (21, 946426), (26, 764421), (39, 509614), (42, 473213), (78, 254807), (89, 223314), (91, 218406), (178, 111657), (182, 109203), (267, 74438), (273, 72802), (409, 48594), (534, 37219), (546, 36401), (623, 31902), (818, 24297), (1157, 17178), (1227, 16198), (1246, 15951), (1869, 10634), (2314, 8589), (2454, 8099), (2863, 6942), (3471, 5726), (3738, 5317)]