21587852

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 46296768

約数和(自身を除く): 24708916

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 47, 52, 73, 94, 121, 143, 146, 188, 242, 286, 292, 484, 517, 572, 611, 803, 949, 1034, 1222, 1573, 1606, 1898, 2068, 2444, 3146, 3212, 3431, 3796, 5687, 6292, 6721, 6862, 8833, 10439, 11374, 13442, 13724, 17666, 20878, 22748, 26884, 35332, 37741, 41756, 44603, 73931, 75482, 89206, 114829, 147862, 150964, 178412, 229658, 295724, 415151, 459316, 490633, 830302, 981266, 1660604, 1962532, 5396963, 10793926, 21587852]

約数ペア:

[(1, 21587852), (2, 10793926), (4, 5396963), (11, 1962532), (13, 1660604), (22, 981266), (26, 830302), (44, 490633), (47, 459316), (52, 415151), (73, 295724), (94, 229658), (121, 178412), (143, 150964), (146, 147862), (188, 114829), (242, 89206), (286, 75482), (292, 73931), (484, 44603), (517, 41756), (572, 37741), (611, 35332), (803, 26884), (949, 22748), (1034, 20878), (1222, 17666), (1573, 13724), (1606, 13442), (1898, 11374), (2068, 10439), (2444, 8833), (3146, 6862), (3212, 6721), (3431, 6292), (3796, 5687)]