21652408

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20078792

約数列:

[1, 2, 4, 8, 53, 106, 212, 223, 229, 424, 446, 458, 892, 916, 1784, 1832, 11819, 12137, 23638, 24274, 47276, 48548, 51067, 94552, 97096, 102134, 204268, 408536, 2706551, 5413102, 10826204, 21652408]

約数ペア:

[(1, 21652408), (2, 10826204), (4, 5413102), (8, 2706551), (53, 408536), (106, 204268), (212, 102134), (223, 97096), (229, 94552), (424, 51067), (446, 48548), (458, 47276), (892, 24274), (916, 23638), (1784, 12137), (1832, 11819)]