28903693

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 38124800

約数和(自身を除く): 9221107

約数列:

[1, 7, 13, 19, 73, 91, 133, 229, 247, 511, 949, 1387, 1603, 1729, 2977, 4351, 6643, 9709, 16717, 18031, 20839, 30457, 56563, 117019, 126217, 217321, 317623, 395941, 1521247, 2223361, 4129099, 28903693]

約数ペア:

[(1, 28903693), (7, 4129099), (13, 2223361), (19, 1521247), (73, 395941), (91, 317623), (133, 217321), (229, 126217), (247, 117019), (511, 56563), (949, 30457), (1387, 20839), (1603, 18031), (1729, 16717), (2977, 9709), (4351, 6643)]