21990976

素因数分解:

$2^6\times 7^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:467

約数の個数: 56

約数和(自身を含む): 50328576

約数和(自身を除く): 28337600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 191, 224, 257, 382, 448, 514, 764, 1028, 1337, 1528, 1799, 2056, 2674, 3056, 3598, 4112, 5348, 6112, 7196, 8224, 10696, 12224, 14392, 16448, 21392, 28784, 42784, 49087, 57568, 85568, 98174, 115136, 196348, 343609, 392696, 687218, 785392, 1374436, 1570784, 2748872, 3141568, 5497744, 10995488, 21990976]

約数ペア:

[(1, 21990976), (2, 10995488), (4, 5497744), (7, 3141568), (8, 2748872), (14, 1570784), (16, 1374436), (28, 785392), (32, 687218), (56, 392696), (64, 343609), (112, 196348), (191, 115136), (224, 98174), (257, 85568), (382, 57568), (448, 49087), (514, 42784), (764, 28784), (1028, 21392), (1337, 16448), (1528, 14392), (1799, 12224), (2056, 10696), (2674, 8224), (3056, 7196), (3598, 6112), (4112, 5348)]