639161037

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{167891}}^1$

素因数の和:167950

約数の個数: 20

約数和(自身を含む): 975116736

約数和(自身を除く): 335955699

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 167891, 503673, 1511019, 4533057, 7890877, 13599171, 23672631, 71017893, 213053679, 639161037]

約数ペア:

[(1, 639161037), (3, 213053679), (9, 71017893), (27, 23672631), (47, 13599171), (81, 7890877), (141, 4533057), (423, 1511019), (1269, 503673), (3807, 167891)]