20969426

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 13590574

約数列:

[1, 2, 19, 38, 47, 59, 94, 118, 199, 398, 893, 1121, 1786, 2242, 2773, 3781, 5546, 7562, 9353, 11741, 18706, 23482, 52687, 105374, 177707, 223079, 355414, 446158, 551827, 1103654, 10484713, 20969426]

約数ペア:

[(1, 20969426), (2, 10484713), (19, 1103654), (38, 551827), (47, 446158), (59, 355414), (94, 223079), (118, 177707), (199, 105374), (398, 52687), (893, 23482), (1121, 18706), (1786, 11741), (2242, 9353), (2773, 7562), (3781, 5546)]