21332836

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3511}}^1$

素因数の和:3560

約数の個数: 36

約数和(自身を含む): 44841216

約数和(自身を除く): 23508380

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 3511, 6076, 7022, 14044, 24577, 49154, 98308, 108841, 172039, 217682, 344078, 435364, 688156, 761887, 1523774, 3047548, 5333209, 10666418, 21332836]

約数ペア:

[(1, 21332836), (2, 10666418), (4, 5333209), (7, 3047548), (14, 1523774), (28, 761887), (31, 688156), (49, 435364), (62, 344078), (98, 217682), (124, 172039), (196, 108841), (217, 98308), (434, 49154), (868, 24577), (1519, 14044), (3038, 7022), (3511, 6076)]