21581530

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1171}}^1$

素因数の和:1294

約数の個数: 32

約数和(自身を含む): 41348160

約数和(自身を除く): 19766630

約数列:

[1, 2, 5, 10, 19, 38, 95, 97, 190, 194, 485, 970, 1171, 1843, 2342, 3686, 5855, 9215, 11710, 18430, 22249, 44498, 111245, 113587, 222490, 227174, 567935, 1135870, 2158153, 4316306, 10790765, 21581530]

約数ペア:

[(1, 21581530), (2, 10790765), (5, 4316306), (10, 2158153), (19, 1135870), (38, 567935), (95, 227174), (97, 222490), (190, 113587), (194, 111245), (485, 44498), (970, 22249), (1171, 18430), (1843, 11710), (2342, 9215), (3686, 5855)]