21343179

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 34784640

約数和(自身を除く): 13441461

約数列:

[1, 3, 11, 13, 33, 39, 43, 89, 129, 143, 169, 267, 429, 473, 507, 559, 979, 1157, 1419, 1677, 1859, 2937, 3471, 3827, 5577, 6149, 7267, 11481, 12727, 15041, 18447, 21801, 38181, 42097, 45123, 49751, 79937, 126291, 149253, 165451, 239811, 496353, 547261, 646763, 1641783, 1940289, 7114393, 21343179]

約数ペア:

[(1, 21343179), (3, 7114393), (11, 1940289), (13, 1641783), (33, 646763), (39, 547261), (43, 496353), (89, 239811), (129, 165451), (143, 149253), (169, 126291), (267, 79937), (429, 49751), (473, 45123), (507, 42097), (559, 38181), (979, 21801), (1157, 18447), (1419, 15041), (1677, 12727), (1859, 11481), (2937, 7267), (3471, 6149), (3827, 5577)]