19998306

素因数分解:

$2^1\times 3^3\times {\mathrm{199}}^1\times {\mathrm{1861}}^1$

素因数の和:2071

約数の個数: 32

約数和(自身を含む): 44688000

約数和(自身を除く): 24689694

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 199, 398, 597, 1194, 1791, 1861, 3582, 3722, 5373, 5583, 10746, 11166, 16749, 33498, 50247, 100494, 370339, 740678, 1111017, 2222034, 3333051, 6666102, 9999153, 19998306]

約数ペア:

[(1, 19998306), (2, 9999153), (3, 6666102), (6, 3333051), (9, 2222034), (18, 1111017), (27, 740678), (54, 370339), (199, 100494), (398, 50247), (597, 33498), (1194, 16749), (1791, 11166), (1861, 10746), (3582, 5583), (3722, 5373)]