19807964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{547}}^1\times {\mathrm{823}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 37930368

約数和(自身を除く): 18122404

約数列:

[1, 2, 4, 11, 22, 44, 547, 823, 1094, 1646, 2188, 3292, 6017, 9053, 12034, 18106, 24068, 36212, 450181, 900362, 1800724, 4951991, 9903982, 19807964]

約数ペア:

[(1, 19807964), (2, 9903982), (4, 4951991), (11, 1800724), (22, 900362), (44, 450181), (547, 36212), (823, 24068), (1094, 18106), (1646, 12034), (2188, 9053), (3292, 6017)]