21705334

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11657}}^1$

素因数の和:11692

約数の個数: 24

約数和(自身を含む): 39870360

約数和(自身を除く): 18165026

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 11657, 23314, 81599, 163198, 221483, 442966, 571193, 1142386, 1550381, 3100762, 10852667, 21705334]

約数ペア:

[(1, 21705334), (2, 10852667), (7, 3100762), (14, 1550381), (19, 1142386), (38, 571193), (49, 442966), (98, 221483), (133, 163198), (266, 81599), (931, 23314), (1862, 11657)]