20178860289

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18130153}}^1$

素因数の和:18130216

約数の個数: 16

約数和(自身を含む): 31328906112

約数和(自身を除く): 11150045823

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18130153, 54390459, 126911071, 380733213, 960898109, 2882694327, 6726286763, 20178860289]

約数ペア:

[(1, 20178860289), (3, 6726286763), (7, 2882694327), (21, 960898109), (53, 380733213), (159, 126911071), (371, 54390459), (1113, 18130153)]