21477568

素因数分解:

$2^6\times 7^1\times {\mathrm{191}}^1\times {\mathrm{251}}^1$

素因数の和:461

約数の個数: 56

約数和(自身を含む): 49158144

約数和(自身を除く): 27680576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 191, 224, 251, 382, 448, 502, 764, 1004, 1337, 1528, 1757, 2008, 2674, 3056, 3514, 4016, 5348, 6112, 7028, 8032, 10696, 12224, 14056, 16064, 21392, 28112, 42784, 47941, 56224, 85568, 95882, 112448, 191764, 335587, 383528, 671174, 767056, 1342348, 1534112, 2684696, 3068224, 5369392, 10738784, 21477568]

約数ペア:

[(1, 21477568), (2, 10738784), (4, 5369392), (7, 3068224), (8, 2684696), (14, 1534112), (16, 1342348), (28, 767056), (32, 671174), (56, 383528), (64, 335587), (112, 191764), (191, 112448), (224, 95882), (251, 85568), (382, 56224), (448, 47941), (502, 42784), (764, 28112), (1004, 21392), (1337, 16064), (1528, 14056), (1757, 12224), (2008, 10696), (2674, 8032), (3056, 7028), (3514, 6112), (4016, 5348)]