157423721

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13007}}^1$

素因数の和:13053

約数の個数: 24

約数和(自身を含む): 207607680

約数和(自身を除く): 50183959

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 637, 931, 1729, 12103, 13007, 91049, 169091, 247133, 637343, 1183637, 1729931, 3212729, 8285459, 12109517, 22489103, 157423721]

約数ペア:

[(1, 157423721), (7, 22489103), (13, 12109517), (19, 8285459), (49, 3212729), (91, 1729931), (133, 1183637), (247, 637343), (637, 247133), (931, 169091), (1729, 91049), (12103, 13007)]