20253681

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18911}}^1$

素因数の和:18941

約数の個数: 24

約数和(自身を含む): 35403264

約数和(自身を除く): 15149583

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 18911, 56733, 132377, 170199, 321487, 397131, 964461, 1191393, 2250409, 2893383, 6751227, 20253681]

約数ペア:

[(1, 20253681), (3, 6751227), (7, 2893383), (9, 2250409), (17, 1191393), (21, 964461), (51, 397131), (63, 321487), (119, 170199), (153, 132377), (357, 56733), (1071, 18911)]