21352738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 15142622

約数列:

[1, 2, 11, 22, 31, 62, 131, 239, 262, 341, 478, 682, 1441, 2629, 2882, 4061, 5258, 7409, 8122, 14818, 31309, 44671, 62618, 81499, 89342, 162998, 344399, 688798, 970579, 1941158, 10676369, 21352738]

約数ペア:

[(1, 21352738), (2, 10676369), (11, 1941158), (22, 970579), (31, 688798), (62, 344399), (131, 162998), (239, 89342), (262, 81499), (341, 62618), (478, 44671), (682, 31309), (1441, 14818), (2629, 8122), (2882, 7409), (4061, 5258)]