21267536

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69959}}^1$

素因数の和:69986

約数の個数: 20

約数和(自身を含む): 43375200

約数和(自身を除く): 22107664

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69959, 139918, 279836, 559672, 1119344, 1329221, 2658442, 5316884, 10633768, 21267536]

約数ペア:

[(1, 21267536), (2, 10633768), (4, 5316884), (8, 2658442), (16, 1329221), (19, 1119344), (38, 559672), (76, 279836), (152, 139918), (304, 69959)]