21323480

素因数分解:

$2^3\times 5^1\times {\mathrm{601}}^1\times {\mathrm{887}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 48111840

約数和(自身を除く): 26788360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 601, 887, 1202, 1774, 2404, 3005, 3548, 4435, 4808, 6010, 7096, 8870, 12020, 17740, 24040, 35480, 533087, 1066174, 2132348, 2665435, 4264696, 5330870, 10661740, 21323480]

約数ペア:

[(1, 21323480), (2, 10661740), (4, 5330870), (5, 4264696), (8, 2665435), (10, 2132348), (20, 1066174), (40, 533087), (601, 35480), (887, 24040), (1202, 17740), (1774, 12020), (2404, 8870), (3005, 7096), (3548, 6010), (4435, 4808)]