19727451

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 29390400

約数和(自身を除く): 9662949

約数列:

[1, 3, 9, 47, 141, 149, 313, 423, 447, 939, 1341, 2817, 7003, 14711, 21009, 44133, 46637, 63027, 132399, 139911, 419733, 2191939, 6575817, 19727451]

約数ペア:

[(1, 19727451), (3, 6575817), (9, 2191939), (47, 419733), (141, 139911), (149, 132399), (313, 63027), (423, 46637), (447, 44133), (939, 21009), (1341, 14711), (2817, 7003)]