18445323

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 10294773

約数列:

[1, 3, 13, 17, 39, 43, 51, 129, 221, 559, 647, 663, 731, 1677, 1941, 2193, 8411, 9503, 10999, 25233, 27821, 28509, 32997, 83463, 142987, 361673, 428961, 472957, 1085019, 1418871, 6148441, 18445323]

約数ペア:

[(1, 18445323), (3, 6148441), (13, 1418871), (17, 1085019), (39, 472957), (43, 428961), (51, 361673), (129, 142987), (221, 83463), (559, 32997), (647, 28509), (663, 27821), (731, 25233), (1677, 10999), (1941, 9503), (2193, 8411)]