138865678

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{319967}}^1$

素因数の和:320007

約数の個数: 16

約数和(自身を含む): 245735424

約数和(自身を除く): 106869746

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 319967, 639934, 2239769, 4479538, 9918977, 19837954, 69432839, 138865678]

約数ペア:

[(1, 138865678), (2, 69432839), (7, 19837954), (14, 9918977), (31, 4479538), (62, 2239769), (217, 639934), (434, 319967)]