21019624

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2267}}^1$

素因数の和:2353

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 21165176

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2267, 2318, 4534, 4636, 9068, 9272, 18136, 43073, 86146, 138287, 172292, 276574, 344584, 553148, 1106296, 2627453, 5254906, 10509812, 21019624]

約数ペア:

[(1, 21019624), (2, 10509812), (4, 5254906), (8, 2627453), (19, 1106296), (38, 553148), (61, 344584), (76, 276574), (122, 172292), (152, 138287), (244, 86146), (488, 43073), (1159, 18136), (2267, 9272), (2318, 9068), (4534, 4636)]