21962120

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{887}}^1$

素因数の和:1517

約数の個数: 32

約数和(自身を含む): 49550400

約数和(自身を除く): 27588280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 887, 1238, 1774, 2476, 3095, 3548, 4435, 4952, 6190, 7096, 8870, 12380, 17740, 24760, 35480, 549053, 1098106, 2196212, 2745265, 4392424, 5490530, 10981060, 21962120]

約数ペア:

[(1, 21962120), (2, 10981060), (4, 5490530), (5, 4392424), (8, 2745265), (10, 2196212), (20, 1098106), (40, 549053), (619, 35480), (887, 24760), (1238, 17740), (1774, 12380), (2476, 8870), (3095, 7096), (3548, 6190), (4435, 4952)]