21139935638

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1\times {\mathrm{297989}}^1$

素因数の和:298519

約数の個数: 16

約数和(自身を含む): 32182920000

約数和(自身を除く): 11042984362

約数列:

[1, 2, 79, 158, 449, 898, 35471, 70942, 297989, 595978, 23541131, 47082262, 133797061, 267594122, 10569967819, 21139935638]

約数ペア:

[(1, 21139935638), (2, 10569967819), (79, 267594122), (158, 133797061), (449, 47082262), (898, 23541131), (35471, 595978), (70942, 297989)]