21458752

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2521}}^1$

素因数の和:2559

約数の個数: 56

約数和(自身を含む): 51247040

約数和(自身を除く): 29788288

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 133, 152, 224, 266, 304, 448, 532, 608, 1064, 1216, 2128, 2521, 4256, 5042, 8512, 10084, 17647, 20168, 35294, 40336, 47899, 70588, 80672, 95798, 141176, 161344, 191596, 282352, 335293, 383192, 564704, 670586, 766384, 1129408, 1341172, 1532768, 2682344, 3065536, 5364688, 10729376, 21458752]

約数ペア:

[(1, 21458752), (2, 10729376), (4, 5364688), (7, 3065536), (8, 2682344), (14, 1532768), (16, 1341172), (19, 1129408), (28, 766384), (32, 670586), (38, 564704), (56, 383192), (64, 335293), (76, 282352), (112, 191596), (133, 161344), (152, 141176), (224, 95798), (266, 80672), (304, 70588), (448, 47899), (532, 40336), (608, 35294), (1064, 20168), (1216, 17647), (2128, 10084), (2521, 8512), (4256, 5042)]