78881994

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{61723}}^1$

素因数の和:61802

約数の個数: 24

約数和(自身を含む): 173320992

約数和(自身を除く): 94438998

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 61723, 123446, 185169, 370338, 555507, 1111014, 4382333, 8764666, 13146999, 26293998, 39440997, 78881994]

約数ペア:

[(1, 78881994), (2, 39440997), (3, 26293998), (6, 13146999), (9, 8764666), (18, 4382333), (71, 1111014), (142, 555507), (213, 370338), (426, 185169), (639, 123446), (1278, 61723)]