18005236

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:416

約数の個数: 36

約数和(自身を含む): 34254948

約数和(自身を除く): 16249712

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 337, 361, 674, 703, 722, 1348, 1406, 1444, 2812, 6403, 12469, 12806, 13357, 24938, 25612, 26714, 49876, 53428, 121657, 236911, 243314, 473822, 486628, 947644, 4501309, 9002618, 18005236]

約数ペア:

[(1, 18005236), (2, 9002618), (4, 4501309), (19, 947644), (37, 486628), (38, 473822), (74, 243314), (76, 236911), (148, 121657), (337, 53428), (361, 49876), (674, 26714), (703, 25612), (722, 24938), (1348, 13357), (1406, 12806), (1444, 12469), (2812, 6403)]