217572615

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123973}}^1$

素因数の和:124000

約数の個数: 32

約数和(自身を含む): 416552640

約数和(自身を除く): 198980025

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 123973, 371919, 619865, 1115757, 1611649, 1859595, 3347271, 4834947, 5578785, 8058245, 14504841, 16736355, 24174735, 43514523, 72524205, 217572615]

約数ペア:

[(1, 217572615), (3, 72524205), (5, 43514523), (9, 24174735), (13, 16736355), (15, 14504841), (27, 8058245), (39, 5578785), (45, 4834947), (65, 3347271), (117, 1859595), (135, 1611649), (195, 1115757), (351, 619865), (585, 371919), (1755, 123973)]