212216529

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{531871}}^1$

素因数の和:531900

約数の個数: 16

約数和(自身を含む): 340398080

約数和(自身を除く): 128181551

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 531871, 1595613, 3723097, 10105549, 11169291, 30316647, 70738843, 212216529]

約数ペア:

[(1, 212216529), (3, 70738843), (7, 30316647), (19, 11169291), (21, 10105549), (57, 3723097), (133, 1595613), (399, 531871)]