19158381

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{449}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 30326400

約数和(自身を除く): 11168019

約数列:

[1, 3, 9, 11, 33, 99, 431, 449, 1293, 1347, 3879, 4041, 4741, 4939, 14223, 14817, 42669, 44451, 193519, 580557, 1741671, 2128709, 6386127, 19158381]

約数ペア:

[(1, 19158381), (3, 6386127), (9, 2128709), (11, 1741671), (33, 580557), (99, 193519), (431, 44451), (449, 42669), (1293, 14817), (1347, 14223), (3879, 4939), (4041, 4741)]