21406215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{62047}}^1$

素因数の和:62078

約数の個数: 16

約数和(自身を含む): 35739648

約数和(自身を除く): 14333433

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 62047, 186141, 310235, 930705, 1427081, 4281243, 7135405, 21406215]

約数ペア:

[(1, 21406215), (3, 7135405), (5, 4281243), (15, 1427081), (23, 930705), (69, 310235), (115, 186141), (345, 62047)]