21381912

素因数分解:

$2^3\times 3^2\times {\mathrm{296971}}^1$

素因数の和:296983

約数の個数: 24

約数和(自身を含む): 57909540

約数和(自身を除く): 36527628

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 296971, 593942, 890913, 1187884, 1781826, 2375768, 2672739, 3563652, 5345478, 7127304, 10690956, 21381912]

約数ペア:

[(1, 21381912), (2, 10690956), (3, 7127304), (4, 5345478), (6, 3563652), (8, 2672739), (9, 2375768), (12, 1781826), (18, 1187884), (24, 890913), (36, 593942), (72, 296971)]