21252051

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4603}}^1$

素因数の和:4637

約数の個数: 24

約数和(自身を含む): 33517120

約数和(自身を除く): 12265069

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4603, 4617, 13809, 41427, 87457, 124281, 262371, 372843, 787113, 1118529, 2361339, 7084017, 21252051]

約数ペア:

[(1, 21252051), (3, 7084017), (9, 2361339), (19, 1118529), (27, 787113), (57, 372843), (81, 262371), (171, 124281), (243, 87457), (513, 41427), (1539, 13809), (4603, 4617)]