20561348

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1129}}^1$

素因数の和:1319

約数の個数: 24

約数和(自身を含む): 37493400

約数和(自身を除く): 16932052

約数列:

[1, 2, 4, 29, 58, 116, 157, 314, 628, 1129, 2258, 4516, 4553, 9106, 18212, 32741, 65482, 130964, 177253, 354506, 709012, 5140337, 10280674, 20561348]

約数ペア:

[(1, 20561348), (2, 10280674), (4, 5140337), (29, 709012), (58, 354506), (116, 177253), (157, 130964), (314, 65482), (628, 32741), (1129, 18212), (2258, 9106), (4516, 4553)]