21261604287

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{508517}}^1$

素因数の和:508719

約数の個数: 32

約数和(自身を含む): 35539305984

約数和(自身を除く): 14277701697

約数列:

[1, 3, 7, 11, 21, 33, 77, 181, 231, 543, 1267, 1991, 3801, 5973, 13937, 41811, 508517, 1525551, 3559619, 5593687, 10678857, 16781061, 39155809, 92041577, 117467427, 276124731, 644291039, 1012457347, 1932873117, 3037372041, 7087201429, 21261604287]

約数ペア:

[(1, 21261604287), (3, 7087201429), (7, 3037372041), (11, 1932873117), (21, 1012457347), (33, 644291039), (77, 276124731), (181, 117467427), (231, 92041577), (543, 39155809), (1267, 16781061), (1991, 10678857), (3801, 5593687), (5973, 3559619), (13937, 1525551), (41811, 508517)]