20447504

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2371}}^1$

素因数の和:2404

約数の個数: 60

約数和(自身を含む): 50295888

約数和(自身を除く): 29848384

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 308, 392, 539, 616, 784, 1078, 1232, 2156, 2371, 4312, 4742, 8624, 9484, 16597, 18968, 26081, 33194, 37936, 52162, 66388, 104324, 116179, 132776, 182567, 208648, 232358, 265552, 365134, 417296, 464716, 730268, 929432, 1277969, 1460536, 1858864, 2555938, 2921072, 5111876, 10223752, 20447504]

約数ペア:

[(1, 20447504), (2, 10223752), (4, 5111876), (7, 2921072), (8, 2555938), (11, 1858864), (14, 1460536), (16, 1277969), (22, 929432), (28, 730268), (44, 464716), (49, 417296), (56, 365134), (77, 265552), (88, 232358), (98, 208648), (112, 182567), (154, 132776), (176, 116179), (196, 104324), (308, 66388), (392, 52162), (539, 37936), (616, 33194), (784, 26081), (1078, 18968), (1232, 16597), (2156, 9484), (2371, 8624), (4312, 4742)]