21071904

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31357}}^1$

素因数の和:31377

約数の個数: 48

約数和(自身を含む): 63217728

約数和(自身を除く): 42145824

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 31357, 62714, 94071, 125428, 188142, 219499, 250856, 376284, 438998, 501712, 658497, 752568, 877996, 1003424, 1316994, 1505136, 1755992, 2633988, 3010272, 3511984, 5267976, 7023968, 10535952, 21071904]

約数ペア:

[(1, 21071904), (2, 10535952), (3, 7023968), (4, 5267976), (6, 3511984), (7, 3010272), (8, 2633988), (12, 1755992), (14, 1505136), (16, 1316994), (21, 1003424), (24, 877996), (28, 752568), (32, 658497), (42, 501712), (48, 438998), (56, 376284), (84, 250856), (96, 219499), (112, 188142), (168, 125428), (224, 94071), (336, 62714), (672, 31357)]