21473465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19433}}^1$

素因数の和:19468

約数の個数: 16

約数和(自身を含む): 29384208

約数和(自身を除く): 7910743

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 19433, 97165, 252629, 330361, 1263145, 1651805, 4294693, 21473465]

約数ペア:

[(1, 21473465), (5, 4294693), (13, 1651805), (17, 1263145), (65, 330361), (85, 252629), (221, 97165), (1105, 19433)]