21364360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28111}}^1$

素因数の和:28141

約数の個数: 32

約数和(自身を含む): 50601600

約数和(自身を除く): 29237240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28111, 56222, 112444, 140555, 224888, 281110, 534109, 562220, 1068218, 1124440, 2136436, 2670545, 4272872, 5341090, 10682180, 21364360]

約数ペア:

[(1, 21364360), (2, 10682180), (4, 5341090), (5, 4272872), (8, 2670545), (10, 2136436), (19, 1124440), (20, 1068218), (38, 562220), (40, 534109), (76, 281110), (95, 224888), (152, 140555), (190, 112444), (380, 56222), (760, 28111)]