28817289

素因数分解:

$3^4\times {\mathrm{359}}^1\times {\mathrm{991}}^1$

素因数の和:1362

約数の個数: 20

約数和(自身を含む): 43211520

約数和(自身を除く): 14394231

約数列:

[1, 3, 9, 27, 81, 359, 991, 1077, 2973, 3231, 8919, 9693, 26757, 29079, 80271, 355769, 1067307, 3201921, 9605763, 28817289]

約数ペア:

[(1, 28817289), (3, 9605763), (9, 3201921), (27, 1067307), (81, 355769), (359, 80271), (991, 29079), (1077, 26757), (2973, 9693), (3231, 8919)]