388520139

素因数分解:

$3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{73709}}^1$

素因数の和:73970

約数の個数: 16

約数和(自身を含む): 594397440

約数和(自身を除く): 205877301

約数列:

[1, 3, 7, 21, 251, 753, 1757, 5271, 73709, 221127, 515963, 1547889, 18500959, 55502877, 129506713, 388520139]

約数ペア:

[(1, 388520139), (3, 129506713), (7, 55502877), (21, 18500959), (251, 1547889), (753, 515963), (1757, 221127), (5271, 73709)]