19990554

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{283}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 40991424

約数和(自身を除く): 21000870

約数列:

[1, 2, 3, 6, 61, 122, 183, 193, 283, 366, 386, 566, 579, 849, 1158, 1698, 11773, 17263, 23546, 34526, 35319, 51789, 54619, 70638, 103578, 109238, 163857, 327714, 3331759, 6663518, 9995277, 19990554]

約数ペア:

[(1, 19990554), (2, 9995277), (3, 6663518), (6, 3331759), (61, 327714), (122, 163857), (183, 109238), (193, 103578), (283, 70638), (366, 54619), (386, 51789), (566, 35319), (579, 34526), (849, 23546), (1158, 17263), (1698, 11773)]