21157788429

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{215261}}^1$

素因数の和:215497

約数の個数: 24

約数和(自身を含む): 31207823712

約数和(自身を除く): 10050035283

約数列:

[1, 3, 9, 67, 163, 201, 489, 603, 1467, 10921, 32763, 98289, 215261, 645783, 1937349, 14422487, 35087543, 43267461, 105262629, 129802383, 315787887, 2350865381, 7052596143, 21157788429]

約数ペア:

[(1, 21157788429), (3, 7052596143), (9, 2350865381), (67, 315787887), (163, 129802383), (201, 105262629), (489, 43267461), (603, 35087543), (1467, 14422487), (10921, 1937349), (32763, 645783), (98289, 215261)]