20048553

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1861}}^1$

素因数の和:1899

約数の個数: 40

約数和(自身を含む): 36048320

約数和(自身を除く): 15999767

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 1861, 3591, 5583, 10773, 13027, 16749, 35359, 39081, 50247, 106077, 117243, 150741, 247513, 318231, 351729, 742539, 954693, 1055187, 2227617, 2864079, 6682851, 20048553]

約数ペア:

[(1, 20048553), (3, 6682851), (7, 2864079), (9, 2227617), (19, 1055187), (21, 954693), (27, 742539), (57, 351729), (63, 318231), (81, 247513), (133, 150741), (171, 117243), (189, 106077), (399, 50247), (513, 39081), (567, 35359), (1197, 16749), (1539, 13027), (1861, 10773), (3591, 5583)]