21528221343

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{727}}^1\times {\mathrm{2137}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 29884108800

約数和(自身を除く): 8355887457

約数列:

[1, 3, 31, 93, 149, 447, 727, 2137, 2181, 4619, 6411, 13857, 22537, 66247, 67611, 108323, 198741, 318413, 324969, 955239, 1553599, 3358013, 4660797, 9870803, 10074039, 29612409, 48161569, 144484707, 231486251, 694458753, 7176073781, 21528221343]

約数ペア:

[(1, 21528221343), (3, 7176073781), (31, 694458753), (93, 231486251), (149, 144484707), (447, 48161569), (727, 29612409), (2137, 10074039), (2181, 9870803), (4619, 4660797), (6411, 3358013), (13857, 1553599), (22537, 955239), (66247, 324969), (67611, 318413), (108323, 198741)]