21633815

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 31064064

約数和(自身を除く): 9430249

約数列:

[1, 5, 7, 31, 35, 127, 155, 157, 217, 635, 785, 889, 1085, 1099, 3937, 4445, 4867, 5495, 19685, 19939, 24335, 27559, 34069, 99695, 137795, 139573, 170345, 618109, 697865, 3090545, 4326763, 21633815]

約数ペア:

[(1, 21633815), (5, 4326763), (7, 3090545), (31, 697865), (35, 618109), (127, 170345), (155, 139573), (157, 137795), (217, 99695), (635, 34069), (785, 27559), (889, 24335), (1085, 19939), (1099, 19685), (3937, 5495), (4445, 4867)]