21193330

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 39110400

約数和(自身を除く): 17917070

約数列:

[1, 2, 5, 10, 79, 139, 158, 193, 278, 386, 395, 695, 790, 965, 1390, 1930, 10981, 15247, 21962, 26827, 30494, 53654, 54905, 76235, 109810, 134135, 152470, 268270, 2119333, 4238666, 10596665, 21193330]

約数ペア:

[(1, 21193330), (2, 10596665), (5, 4238666), (10, 2119333), (79, 268270), (139, 152470), (158, 134135), (193, 109810), (278, 76235), (386, 54905), (395, 53654), (695, 30494), (790, 26827), (965, 21962), (1390, 15247), (1930, 10981)]