13780151

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 18579456

約数和(自身を除く): 4799305

約数列:

[1, 7, 11, 23, 31, 77, 161, 217, 251, 253, 341, 713, 1757, 1771, 2387, 2761, 4991, 5773, 7781, 7843, 19327, 40411, 54467, 54901, 63503, 85591, 178963, 444521, 599137, 1252741, 1968593, 13780151]

約数ペア:

[(1, 13780151), (7, 1968593), (11, 1252741), (23, 599137), (31, 444521), (77, 178963), (161, 85591), (217, 63503), (251, 54901), (253, 54467), (341, 40411), (713, 19327), (1757, 7843), (1771, 7781), (2387, 5773), (2761, 4991)]