215195511

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 301771008

約数和(自身を除く): 86575497

約数列:

[1, 3, 41, 83, 107, 123, 197, 249, 321, 591, 3403, 4387, 8077, 8881, 10209, 13161, 16351, 21079, 24231, 26643, 49053, 63237, 364121, 670391, 864239, 1092363, 1749557, 2011173, 2592717, 5248671, 71731837, 215195511]

約数ペア:

[(1, 215195511), (3, 71731837), (41, 5248671), (83, 2592717), (107, 2011173), (123, 1749557), (197, 1092363), (249, 864239), (321, 670391), (591, 364121), (3403, 63237), (4387, 49053), (8077, 26643), (8881, 24231), (10209, 21079), (13161, 16351)]