19741455

素因数分解:

$3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{569}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 35294400

約数和(自身を除く): 15552945

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 257, 569, 771, 1285, 1707, 2313, 2845, 3855, 5121, 6939, 8535, 11565, 15363, 25605, 34695, 76815, 146233, 438699, 731165, 1316097, 2193495, 3948291, 6580485, 19741455]

約数ペア:

[(1, 19741455), (3, 6580485), (5, 3948291), (9, 2193495), (15, 1316097), (27, 731165), (45, 438699), (135, 146233), (257, 76815), (569, 34695), (771, 25605), (1285, 15363), (1707, 11565), (2313, 8535), (2845, 6939), (3855, 5121)]