16405221

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45953}}^1$

素因数の和:45980

約数の個数: 16

約数和(自身を含む): 26469504

約数和(自身を除く): 10064283

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 45953, 137859, 321671, 781201, 965013, 2343603, 5468407, 16405221]

約数ペア:

[(1, 16405221), (3, 5468407), (7, 2343603), (17, 965013), (21, 781201), (51, 321671), (119, 137859), (357, 45953)]