21607628

素因数分解:

$2^2\times 7^3\times {\mathrm{15749}}^1$

素因数の和:15774

約数の個数: 24

約数和(自身を含む): 44100000

約数和(自身を除く): 22492372

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15749, 31498, 62996, 110243, 220486, 440972, 771701, 1543402, 3086804, 5401907, 10803814, 21607628]

約数ペア:

[(1, 21607628), (2, 10803814), (4, 5401907), (7, 3086804), (14, 1543402), (28, 771701), (49, 440972), (98, 220486), (196, 110243), (343, 62996), (686, 31498), (1372, 15749)]