217435455

素因数分解:

$3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{18097}}^1$

素因数の和:18200

約数の個数: 32

約数和(自身を含む): 390916800

約数和(自身を除く): 173481345

約数列:

[1, 3, 5, 9, 15, 27, 45, 89, 135, 267, 445, 801, 1335, 2403, 4005, 12015, 18097, 54291, 90485, 162873, 271455, 488619, 814365, 1610633, 2443095, 4831899, 8053165, 14495697, 24159495, 43487091, 72478485, 217435455]

約数ペア:

[(1, 217435455), (3, 72478485), (5, 43487091), (9, 24159495), (15, 14495697), (27, 8053165), (45, 4831899), (89, 2443095), (135, 1610633), (267, 814365), (445, 488619), (801, 271455), (1335, 162873), (2403, 90485), (4005, 54291), (12015, 18097)]