19948491

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 31080000

約数和(自身を除く): 11131509

約数列:

[1, 3, 9, 27, 29, 73, 87, 219, 261, 349, 657, 783, 1047, 1971, 2117, 3141, 6351, 9423, 10121, 19053, 25477, 30363, 57159, 76431, 91089, 229293, 273267, 687879, 738833, 2216499, 6649497, 19948491]

約数ペア:

[(1, 19948491), (3, 6649497), (9, 2216499), (27, 738833), (29, 687879), (73, 273267), (87, 229293), (219, 91089), (261, 76431), (349, 57159), (657, 30363), (783, 25477), (1047, 19053), (1971, 10121), (2117, 9423), (3141, 6351)]