18739491

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 9565149

約数列:

[1, 3, 17, 19, 51, 57, 83, 233, 249, 323, 699, 969, 1411, 1577, 3961, 4233, 4427, 4731, 11883, 13281, 19339, 26809, 58017, 75259, 80427, 225777, 328763, 367441, 986289, 1102323, 6246497, 18739491]

約数ペア:

[(1, 18739491), (3, 6246497), (17, 1102323), (19, 986289), (51, 367441), (57, 328763), (83, 225777), (233, 80427), (249, 75259), (323, 58017), (699, 26809), (969, 19339), (1411, 13281), (1577, 11883), (3961, 4731), (4233, 4427)]