21323985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74821}}^1$

素因数の和:74848

約数の個数: 16

約数和(自身を含む): 35914560

約数和(自身を除く): 14590575

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 74821, 224463, 374105, 1122315, 1421599, 4264797, 7107995, 21323985]

約数ペア:

[(1, 21323985), (3, 7107995), (5, 4264797), (15, 1421599), (19, 1122315), (57, 374105), (95, 224463), (285, 74821)]