21935173

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:412

約数の個数: 16

約数和(自身を含む): 24304000

約数和(自身を除く): 2368827

約数列:

[1, 13, 61, 139, 199, 793, 1807, 2587, 8479, 12139, 27661, 110227, 157807, 359593, 1687321, 21935173]

約数ペア:

[(1, 21935173), (13, 1687321), (61, 359593), (139, 157807), (199, 110227), (793, 27661), (1807, 12139), (2587, 8479)]