21230552

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:828

約数の個数: 64

約数和(自身を含む): 49896000

約数和(自身を除く): 28665448

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 29, 34, 56, 58, 68, 116, 119, 136, 203, 232, 238, 406, 476, 493, 769, 812, 952, 986, 1538, 1624, 1972, 3076, 3451, 3944, 5383, 6152, 6902, 10766, 13073, 13804, 21532, 22301, 26146, 27608, 43064, 44602, 52292, 89204, 91511, 104584, 156107, 178408, 183022, 312214, 366044, 379117, 624428, 732088, 758234, 1248856, 1516468, 2653819, 3032936, 5307638, 10615276, 21230552]

約数ペア:

[(1, 21230552), (2, 10615276), (4, 5307638), (7, 3032936), (8, 2653819), (14, 1516468), (17, 1248856), (28, 758234), (29, 732088), (34, 624428), (56, 379117), (58, 366044), (68, 312214), (116, 183022), (119, 178408), (136, 156107), (203, 104584), (232, 91511), (238, 89204), (406, 52292), (476, 44602), (493, 43064), (769, 27608), (812, 26146), (952, 22301), (986, 21532), (1538, 13804), (1624, 13073), (1972, 10766), (3076, 6902), (3451, 6152), (3944, 5383)]