21238328

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{887}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 41398560

約数和(自身を除く): 20160232

約数列:

[1, 2, 4, 8, 41, 73, 82, 146, 164, 292, 328, 584, 887, 1774, 2993, 3548, 5986, 7096, 11972, 23944, 36367, 64751, 72734, 129502, 145468, 259004, 290936, 518008, 2654791, 5309582, 10619164, 21238328]

約数ペア:

[(1, 21238328), (2, 10619164), (4, 5309582), (8, 2654791), (41, 518008), (73, 290936), (82, 259004), (146, 145468), (164, 129502), (292, 72734), (328, 64751), (584, 36367), (887, 23944), (1774, 11972), (2993, 7096), (3548, 5986)]