61990019

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{12853}}^1$

素因数の和:12926

約数の個数: 16

約数和(自身を含む): 77740992

約数和(自身を除く): 15750973

約数列:

[1, 7, 13, 53, 91, 371, 689, 4823, 12853, 89971, 167089, 681209, 1169623, 4768463, 8855717, 61990019]

約数ペア:

[(1, 61990019), (7, 8855717), (13, 4768463), (53, 1169623), (91, 681209), (371, 167089), (689, 89971), (4823, 12853)]