210903993

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{55399}}^1$

素因数の和:55458

約数の個数: 20

約数和(自身を含む): 321763200

約数和(自身を除く): 110859207

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 55399, 166197, 498591, 1495773, 2603753, 4487319, 7811259, 23433777, 70301331, 210903993]

約数ペア:

[(1, 210903993), (3, 70301331), (9, 23433777), (27, 7811259), (47, 4487319), (81, 2603753), (141, 1495773), (423, 498591), (1269, 166197), (3807, 55399)]