20951958

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{359}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 42923520

約数和(自身を除く): 21971562

約数列:

[1, 2, 3, 6, 71, 137, 142, 213, 274, 359, 411, 426, 718, 822, 1077, 2154, 9727, 19454, 25489, 29181, 49183, 50978, 58362, 76467, 98366, 147549, 152934, 295098, 3491993, 6983986, 10475979, 20951958]

約数ペア:

[(1, 20951958), (2, 10475979), (3, 6983986), (6, 3491993), (71, 295098), (137, 152934), (142, 147549), (213, 98366), (274, 76467), (359, 58362), (411, 50978), (426, 49183), (718, 29181), (822, 25489), (1077, 19454), (2154, 9727)]