21010976

素因数分解:

$2^5\times 7^1\times {\mathrm{97}}^1\times {\mathrm{967}}^1$

素因数の和:1081

約数の個数: 48

約数和(自身を含む): 47811456

約数和(自身を除く): 26800480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 97, 112, 194, 224, 388, 679, 776, 967, 1358, 1552, 1934, 2716, 3104, 3868, 5432, 6769, 7736, 10864, 13538, 15472, 21728, 27076, 30944, 54152, 93799, 108304, 187598, 216608, 375196, 656593, 750392, 1313186, 1500784, 2626372, 3001568, 5252744, 10505488, 21010976]

約数ペア:

[(1, 21010976), (2, 10505488), (4, 5252744), (7, 3001568), (8, 2626372), (14, 1500784), (16, 1313186), (28, 750392), (32, 656593), (56, 375196), (97, 216608), (112, 187598), (194, 108304), (224, 93799), (388, 54152), (679, 30944), (776, 27076), (967, 21728), (1358, 15472), (1552, 13538), (1934, 10864), (2716, 7736), (3104, 6769), (3868, 5432)]