21018505284

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{3407}}^1\times {\mathrm{24481}}^1$

素因数の和:27905

約数の個数: 72

約数和(自身を含む): 60740429568

約数和(自身を除く): 39721924284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 3407, 6814, 10221, 13628, 20442, 23849, 24481, 30663, 40884, 47698, 48962, 61326, 71547, 73443, 95396, 97924, 122652, 143094, 146886, 171367, 214641, 220329, 286188, 293772, 342734, 429282, 440658, 514101, 685468, 858564, 881316, 1028202, 1542303, 2056404, 3084606, 6169212, 83406767, 166813534, 250220301, 333627068, 500440602, 583847369, 750660903, 1000881204, 1167694738, 1501321806, 1751542107, 2335389476, 3002643612, 3503084214, 5254626321, 7006168428, 10509252642, 21018505284]

約数ペア:

[(1, 21018505284), (2, 10509252642), (3, 7006168428), (4, 5254626321), (6, 3503084214), (7, 3002643612), (9, 2335389476), (12, 1751542107), (14, 1501321806), (18, 1167694738), (21, 1000881204), (28, 750660903), (36, 583847369), (42, 500440602), (63, 333627068), (84, 250220301), (126, 166813534), (252, 83406767), (3407, 6169212), (6814, 3084606), (10221, 2056404), (13628, 1542303), (20442, 1028202), (23849, 881316), (24481, 858564), (30663, 685468), (40884, 514101), (47698, 440658), (48962, 429282), (61326, 342734), (71547, 293772), (73443, 286188), (95396, 220329), (97924, 214641), (122652, 171367), (143094, 146886)]