1898001

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 3204864

約数和(自身を除く): 1306863

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 641, 987, 1923, 2961, 4487, 5769, 13461, 30127, 40383, 90381, 210889, 271143, 632667, 1898001]

約数ペア:

[(1, 1898001), (3, 632667), (7, 271143), (9, 210889), (21, 90381), (47, 40383), (63, 30127), (141, 13461), (329, 5769), (423, 4487), (641, 2961), (987, 1923)]