21595882

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 43732224

約数和(自身を除く): 22136342

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 73, 77, 113, 119, 146, 154, 187, 226, 238, 374, 511, 791, 803, 1022, 1241, 1243, 1309, 1582, 1606, 1921, 2482, 2486, 2618, 3842, 5621, 8249, 8687, 8701, 11242, 13447, 13651, 16498, 17374, 17402, 21131, 26894, 27302, 42262, 57743, 90739, 95557, 115486, 140233, 147917, 181478, 191114, 280466, 295834, 635173, 981631, 1270346, 1542563, 1963262, 3085126, 10797941, 21595882]

約数ペア:

[(1, 21595882), (2, 10797941), (7, 3085126), (11, 1963262), (14, 1542563), (17, 1270346), (22, 981631), (34, 635173), (73, 295834), (77, 280466), (113, 191114), (119, 181478), (146, 147917), (154, 140233), (187, 115486), (226, 95557), (238, 90739), (374, 57743), (511, 42262), (791, 27302), (803, 26894), (1022, 21131), (1241, 17402), (1243, 17374), (1309, 16498), (1582, 13651), (1606, 13447), (1921, 11242), (2482, 8701), (2486, 8687), (2618, 8249), (3842, 5621)]