21143752

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4549}}^1$

素因数の和:4645

約数の個数: 32

約数和(自身を含む): 45864000

約数和(自身を除く): 24720248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4549, 4648, 9098, 18196, 31843, 36392, 63686, 127372, 254744, 377567, 755134, 1510268, 2642969, 3020536, 5285938, 10571876, 21143752]

約数ペア:

[(1, 21143752), (2, 10571876), (4, 5285938), (7, 3020536), (8, 2642969), (14, 1510268), (28, 755134), (56, 377567), (83, 254744), (166, 127372), (332, 63686), (581, 36392), (664, 31843), (1162, 18196), (2324, 9098), (4549, 4648)]