21000940206

素因数分解:

$2^1\times 3^1\times {\mathrm{1399}}^1\times {\mathrm{2501899}}^1$

素因数の和:2503303

約数の個数: 16

約数和(自身を含む): 42031920000

約数和(自身を除く): 21030979794

約数列:

[1, 2, 3, 6, 1399, 2798, 4197, 8394, 2501899, 5003798, 7505697, 15011394, 3500156701, 7000313402, 10500470103, 21000940206]

約数ペア:

[(1, 21000940206), (2, 10500470103), (3, 7000313402), (6, 3500156701), (1399, 15011394), (2798, 7505697), (4197, 5003798), (8394, 2501899)]