21195594

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{18691}}^1$

素因数の和:18712

約数の個数: 40

約数和(自身を含む): 54281568

約数和(自身を除く): 33085974

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 18691, 37382, 56073, 112146, 130837, 168219, 261674, 336438, 392511, 504657, 785022, 1009314, 1177533, 1513971, 2355066, 3027942, 3532599, 7065198, 10597797, 21195594]

約数ペア:

[(1, 21195594), (2, 10597797), (3, 7065198), (6, 3532599), (7, 3027942), (9, 2355066), (14, 1513971), (18, 1177533), (21, 1009314), (27, 785022), (42, 504657), (54, 392511), (63, 336438), (81, 261674), (126, 168219), (162, 130837), (189, 112146), (378, 56073), (567, 37382), (1134, 18691)]