21145144

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{859}}^1$

素因数の和:1063

約数の個数: 32

約数和(自身を含む): 42260400

約数和(自身を除く): 21115256

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 181, 362, 724, 859, 1448, 1718, 3077, 3436, 6154, 6872, 12308, 14603, 24616, 29206, 58412, 116824, 155479, 310958, 621916, 1243832, 2643143, 5286286, 10572572, 21145144]

約数ペア:

[(1, 21145144), (2, 10572572), (4, 5286286), (8, 2643143), (17, 1243832), (34, 621916), (68, 310958), (136, 155479), (181, 116824), (362, 58412), (724, 29206), (859, 24616), (1448, 14603), (1718, 12308), (3077, 6872), (3436, 6154)]