81421574

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{164821}}^1$

素因数の和:164855

約数の個数: 16

約数和(自身を含む): 138450480

約数和(自身を除く): 57028906

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 164821, 329642, 2142673, 3131599, 4285346, 6263198, 40710787, 81421574]

約数ペア:

[(1, 81421574), (2, 40710787), (13, 6263198), (19, 4285346), (26, 3131599), (38, 2142673), (247, 329642), (494, 164821)]