81236897

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 104343552

約数和(自身を除く): 23106655

約数列:

[1, 7, 17, 23, 67, 119, 161, 391, 443, 469, 1139, 1541, 2737, 3101, 7531, 7973, 10189, 10787, 26197, 29681, 52717, 71323, 173213, 183379, 207767, 504577, 682663, 1212491, 3532039, 4778641, 11605271, 81236897]

約数ペア:

[(1, 81236897), (7, 11605271), (17, 4778641), (23, 3532039), (67, 1212491), (119, 682663), (161, 504577), (391, 207767), (443, 183379), (469, 173213), (1139, 71323), (1541, 52717), (2737, 29681), (3101, 26197), (7531, 10787), (7973, 10189)]