20581904

素因数分解:

$2^4\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1217}}^1$

素因数の和:1383

約数の個数: 40

約数和(自身を含む): 45913728

約数和(自身を除く): 25331824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 151, 302, 604, 1057, 1208, 1217, 2114, 2416, 2434, 4228, 4868, 8456, 8519, 9736, 16912, 17038, 19472, 34076, 68152, 136304, 183767, 367534, 735068, 1286369, 1470136, 2572738, 2940272, 5145476, 10290952, 20581904]

約数ペア:

[(1, 20581904), (2, 10290952), (4, 5145476), (7, 2940272), (8, 2572738), (14, 1470136), (16, 1286369), (28, 735068), (56, 367534), (112, 183767), (151, 136304), (302, 68152), (604, 34076), (1057, 19472), (1208, 17038), (1217, 16912), (2114, 9736), (2416, 8519), (2434, 8456), (4228, 4868)]