18878721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{11941}}^1$

素因数の和:11992

約数の個数: 16

約数和(自身を含む): 27514368

約数和(自身を除く): 8635647

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 11941, 35823, 202997, 370171, 608991, 1110513, 6292907, 18878721]

約数ペア:

[(1, 18878721), (3, 6292907), (17, 1110513), (31, 608991), (51, 370171), (93, 202997), (527, 35823), (1581, 11941)]