19984015

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1373}}^1$

素因数の和:1490

約数の個数: 16

約数和(自身を含む): 24929856

約数和(自身を除く): 4945841

約数列:

[1, 5, 41, 71, 205, 355, 1373, 2911, 6865, 14555, 56293, 97483, 281465, 487415, 3996803, 19984015]

約数ペア:

[(1, 19984015), (5, 3996803), (41, 487415), (71, 281465), (205, 97483), (355, 56293), (1373, 14555), (2911, 6865)]