18186553

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 24698880

約数和(自身を除く): 6512327

約数列:

[1, 7, 11, 19, 31, 77, 133, 209, 217, 341, 401, 589, 1463, 2387, 2807, 4123, 4411, 6479, 7619, 12431, 30877, 45353, 53333, 83809, 87017, 136741, 236189, 586663, 957187, 1653323, 2598079, 18186553]

約数ペア:

[(1, 18186553), (7, 2598079), (11, 1653323), (19, 957187), (31, 586663), (77, 236189), (133, 136741), (209, 87017), (217, 83809), (341, 53333), (401, 45353), (589, 30877), (1463, 12431), (2387, 7619), (2807, 6479), (4123, 4411)]