201917991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2711}}^1$

素因数の和:2823

約数の個数: 32

約数和(自身を含む): 306694656

約数和(自身を除く): 104776665

約数列:

[1, 3, 11, 33, 37, 61, 111, 183, 407, 671, 1221, 2013, 2257, 2711, 6771, 8133, 24827, 29821, 74481, 89463, 100307, 165371, 300921, 496113, 1103377, 1819081, 3310131, 5457243, 6118727, 18356181, 67305997, 201917991]

約数ペア:

[(1, 201917991), (3, 67305997), (11, 18356181), (33, 6118727), (37, 5457243), (61, 3310131), (111, 1819081), (183, 1103377), (407, 496113), (671, 300921), (1221, 165371), (2013, 100307), (2257, 89463), (2711, 74481), (6771, 29821), (8133, 24827)]