30891903

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{6779}}^1$

素因数の和:6827

約数の個数: 24

約数和(自身を含む): 49466880

約数和(自身を除く): 18574977

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 6779, 20337, 47453, 142359, 210149, 332171, 630447, 996513, 1471043, 4413129, 10297301, 30891903]

約数ペア:

[(1, 30891903), (3, 10297301), (7, 4413129), (21, 1471043), (31, 996513), (49, 630447), (93, 332171), (147, 210149), (217, 142359), (651, 47453), (1519, 20337), (4557, 6779)]