19159221

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{7993}}^1$

素因数の和:8060

約数の個数: 16

約数和(自身を含む): 27627264

約数和(自身を除く): 8468043

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 7993, 23979, 135881, 375671, 407643, 1127013, 6386407, 19159221]

約数ペア:

[(1, 19159221), (3, 6386407), (17, 1127013), (47, 407643), (51, 375671), (141, 135881), (799, 23979), (2397, 7993)]