21870198

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{173573}}^1$

素因数の和:173588

約数の個数: 24

約数和(自身を含む): 54155088

約数和(自身を除く): 32284890

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 173573, 347146, 520719, 1041438, 1215011, 1562157, 2430022, 3124314, 3645033, 7290066, 10935099, 21870198]

約数ペア:

[(1, 21870198), (2, 10935099), (3, 7290066), (6, 3645033), (7, 3124314), (9, 2430022), (14, 1562157), (18, 1215011), (21, 1041438), (42, 520719), (63, 347146), (126, 173573)]