21387322

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 36324288

約数和(自身を除く): 14936966

約数列:

[1, 2, 11, 22, 41, 82, 131, 181, 262, 362, 451, 902, 1441, 1991, 2882, 3982, 5371, 7421, 10742, 14842, 23711, 47422, 59081, 81631, 118162, 163262, 260821, 521642, 972151, 1944302, 10693661, 21387322]

約数ペア:

[(1, 21387322), (2, 10693661), (11, 1944302), (22, 972151), (41, 521642), (82, 260821), (131, 163262), (181, 118162), (262, 81631), (362, 59081), (451, 47422), (902, 23711), (1441, 14842), (1991, 10742), (2882, 7421), (3982, 5371)]