213654815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{27947}}^1$

素因数の和:28102

約数の個数: 16

約数和(自身を含む): 281715840

約数和(自身を除く): 68061025

約数列:

[1, 5, 11, 55, 139, 695, 1529, 7645, 27947, 139735, 307417, 1537085, 3884633, 19423165, 42730963, 213654815]

約数ペア:

[(1, 213654815), (5, 42730963), (11, 19423165), (55, 3884633), (139, 1537085), (695, 307417), (1529, 139735), (7645, 27947)]