20999328

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31249}}^1$

素因数の和:31269

約数の個数: 48

約数和(自身を含む): 63000000

約数和(自身を除く): 42000672

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, 31249, 62498, 93747, 124996, 187494, 218743, 249992, 374988, 437486, 499984, 656229, 749976, 874972, 999968, 1312458, 1499952, 1749944, 2624916, 2999904, 3499888, 5249832, 6999776, 10499664, 20999328]

約数ペア:

[(1, 20999328), (2, 10499664), (3, 6999776), (4, 5249832), (6, 3499888), (7, 2999904), (8, 2624916), (12, 1749944), (14, 1499952), (16, 1312458), (21, 999968), (24, 874972), (28, 749976), (32, 656229), (42, 499984), (48, 437486), (56, 374988), (84, 249992), (96, 218743), (112, 187494), (168, 124996), (224, 93747), (336, 62498), (672, 31249)]