21019154401

素因数分解:

$7^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1\times {\mathrm{46549}}^1$

素因数の和:47064

約数の個数: 16

約数和(自身を含む): 24211958400

約数和(自身を除く): 3192803999

約数列:

[1, 7, 251, 257, 1757, 1799, 46549, 64507, 325843, 451549, 11683799, 11963093, 81786593, 83741651, 3002736343, 21019154401]

約数ペア:

[(1, 21019154401), (7, 3002736343), (251, 83741651), (257, 81786593), (1757, 11963093), (1799, 11683799), (46549, 451549), (64507, 325843)]