20665112

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4621}}^1$

素因数の和:4683

約数の個数: 32

約数和(自身を含む): 42707280

約数和(自身を除く): 22042168

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4621, 9242, 18484, 36968, 60073, 120146, 198703, 240292, 397406, 480584, 794812, 1589624, 2583139, 5166278, 10332556, 20665112]

約数ペア:

[(1, 20665112), (2, 10332556), (4, 5166278), (8, 2583139), (13, 1589624), (26, 794812), (43, 480584), (52, 397406), (86, 240292), (104, 198703), (172, 120146), (344, 60073), (559, 36968), (1118, 18484), (2236, 9242), (4472, 4621)]