64256917

素因数分解:

${\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 72420480

約数和(自身を除く): 8163563

約数列:

[1, 19, 23, 71, 109, 361, 437, 1349, 1633, 2071, 2507, 7739, 8303, 25631, 31027, 39349, 47633, 147041, 177997, 589513, 905027, 2793779, 3381943, 64256917]

約数ペア:

[(1, 64256917), (19, 3381943), (23, 2793779), (71, 905027), (109, 589513), (361, 177997), (437, 147041), (1349, 47633), (1633, 39349), (2071, 31027), (2507, 25631), (7739, 8303)]