21252705

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23227}}^1$

素因数の和:23296

約数の個数: 16

約数和(自身を含む): 34563264

約数和(自身を除く): 13310559

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 23227, 69681, 116135, 348405, 1416847, 4250541, 7084235, 21252705]

約数ペア:

[(1, 21252705), (3, 7084235), (5, 4250541), (15, 1416847), (61, 348405), (183, 116135), (305, 69681), (915, 23227)]