19186979

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 24172560

約数和(自身を除く): 4985581

約数列:

[1, 7, 19, 37, 49, 133, 259, 557, 703, 931, 1813, 3899, 4921, 10583, 20609, 27293, 34447, 74081, 144263, 391571, 518567, 1009841, 2740997, 19186979]

約数ペア:

[(1, 19186979), (7, 2740997), (19, 1009841), (37, 518567), (49, 391571), (133, 144263), (259, 74081), (557, 34447), (703, 27293), (931, 20609), (1813, 10583), (3899, 4921)]