19947255

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 33153024

約数和(自身を除く): 13205769

約数列:

[1, 3, 5, 15, 37, 111, 127, 185, 283, 381, 555, 635, 849, 1415, 1905, 4245, 4699, 10471, 14097, 23495, 31413, 35941, 52355, 70485, 107823, 157065, 179705, 539115, 1329817, 3989451, 6649085, 19947255]

約数ペア:

[(1, 19947255), (3, 6649085), (5, 3989451), (15, 1329817), (37, 539115), (111, 179705), (127, 157065), (185, 107823), (283, 70485), (381, 52355), (555, 35941), (635, 31413), (849, 23495), (1415, 14097), (1905, 10471), (4245, 4699)]