21180556

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1163}}^1$

素因数の和:1353

約数の個数: 24

約数和(自身を含む): 38621520

約数和(自身を除く): 17440964

約数列:

[1, 2, 4, 29, 58, 116, 157, 314, 628, 1163, 2326, 4553, 4652, 9106, 18212, 33727, 67454, 134908, 182591, 365182, 730364, 5295139, 10590278, 21180556]

約数ペア:

[(1, 21180556), (2, 10590278), (4, 5295139), (29, 730364), (58, 365182), (116, 182591), (157, 134908), (314, 67454), (628, 33727), (1163, 18212), (2326, 9106), (4553, 4652)]