21201472

素因数分解:

$2^6\times {\mathrm{257}}^1\times {\mathrm{1289}}^1$

素因数の和:1558

約数の個数: 28

約数和(自身を含む): 42268140

約数和(自身を除く): 21066668

約数列:

[1, 2, 4, 8, 16, 32, 64, 257, 514, 1028, 1289, 2056, 2578, 4112, 5156, 8224, 10312, 16448, 20624, 41248, 82496, 331273, 662546, 1325092, 2650184, 5300368, 10600736, 21201472]

約数ペア:

[(1, 21201472), (2, 10600736), (4, 5300368), (8, 2650184), (16, 1325092), (32, 662546), (64, 331273), (257, 82496), (514, 41248), (1028, 20624), (1289, 16448), (2056, 10312), (2578, 8224), (4112, 5156)]