21965734

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 41113440

約数和(自身を除く): 19147706

約数列:

[1, 2, 7, 14, 17, 34, 61, 89, 119, 122, 178, 238, 289, 427, 578, 623, 854, 1037, 1246, 1513, 2023, 2074, 3026, 4046, 5429, 7259, 10591, 10858, 14518, 17629, 21182, 25721, 35258, 38003, 51442, 76006, 92293, 123403, 180047, 184586, 246806, 360094, 646051, 1292102, 1568981, 3137962, 10982867, 21965734]

約数ペア:

[(1, 21965734), (2, 10982867), (7, 3137962), (14, 1568981), (17, 1292102), (34, 646051), (61, 360094), (89, 246806), (119, 184586), (122, 180047), (178, 123403), (238, 92293), (289, 76006), (427, 51442), (578, 38003), (623, 35258), (854, 25721), (1037, 21182), (1246, 17629), (1513, 14518), (2023, 10858), (2074, 10591), (3026, 7259), (4046, 5429)]