640111581

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{36269}}^1$

素因数の和:36365

約数の個数: 24

約数和(自身を含む): 967538520

約数和(自身を除く): 327426939

約数列:

[1, 3, 9, 37, 53, 111, 159, 333, 477, 1961, 5883, 17649, 36269, 108807, 326421, 1341953, 1922257, 4025859, 5766771, 12077577, 17300313, 71123509, 213370527, 640111581]

約数ペア:

[(1, 640111581), (3, 213370527), (9, 71123509), (37, 17300313), (53, 12077577), (111, 5766771), (159, 4025859), (333, 1922257), (477, 1341953), (1961, 326421), (5883, 108807), (17649, 36269)]