28981841

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{751}}^1$

素因数の和:944

約数の個数: 16

約数和(自身を含む): 34291200

約数和(自身を除く): 5309359

約数列:

[1, 7, 37, 149, 259, 751, 1043, 5257, 5513, 27787, 38591, 111899, 194509, 783293, 4140263, 28981841]

約数ペア:

[(1, 28981841), (7, 4140263), (37, 783293), (149, 194509), (259, 111899), (751, 38591), (1043, 27787), (5257, 5513)]