18745587

素因数分解:

$3^4\times 7^2\times {\mathrm{4723}}^1$

素因数の和:4749

約数の個数: 30

約数和(自身を含む): 32581428

約数和(自身を除く): 13835841

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4723, 14169, 33061, 42507, 99183, 127521, 231427, 297549, 382563, 694281, 892647, 2082843, 2677941, 6248529, 18745587]

約数ペア:

[(1, 18745587), (3, 6248529), (7, 2677941), (9, 2082843), (21, 892647), (27, 694281), (49, 382563), (63, 297549), (81, 231427), (147, 127521), (189, 99183), (441, 42507), (567, 33061), (1323, 14169), (3969, 4723)]