20835339

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3457}}^1$

素因数の和:3515

約数の個数: 24

約数和(自身を含む): 33113808

約数和(自身を除く): 12278469

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 3457, 6027, 10371, 24199, 72597, 141737, 169393, 425211, 508179, 992159, 2976477, 6945113, 20835339]

約数ペア:

[(1, 20835339), (3, 6945113), (7, 2976477), (21, 992159), (41, 508179), (49, 425211), (123, 169393), (147, 141737), (287, 72597), (861, 24199), (2009, 10371), (3457, 6027)]