20440758

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3691}}^1$

素因数の和:3780

約数の個数: 32

約数和(自身を含む): 44658432

約数和(自身を除く): 24217674

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 3691, 5538, 7382, 11073, 22146, 47983, 95966, 143949, 262061, 287898, 524122, 786183, 1572366, 3406793, 6813586, 10220379, 20440758]

約数ペア:

[(1, 20440758), (2, 10220379), (3, 6813586), (6, 3406793), (13, 1572366), (26, 786183), (39, 524122), (71, 287898), (78, 262061), (142, 143949), (213, 95966), (426, 47983), (923, 22146), (1846, 11073), (2769, 7382), (3691, 5538)]