21489836

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16633}}^1$

素因数の和:16673

約数の個数: 24

約数和(自身を含む): 41917680

約数和(自身を除く): 20427844

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16633, 33266, 66532, 282761, 316027, 565522, 632054, 1131044, 1264108, 5372459, 10744918, 21489836]

約数ペア:

[(1, 21489836), (2, 10744918), (4, 5372459), (17, 1264108), (19, 1131044), (34, 632054), (38, 565522), (68, 316027), (76, 282761), (323, 66532), (646, 33266), (1292, 16633)]