20968486

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2897}}^1$

素因数の和:2964

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 19093466

約数列:

[1, 2, 7, 11, 14, 22, 47, 77, 94, 154, 329, 517, 658, 1034, 2897, 3619, 5794, 7238, 20279, 31867, 40558, 63734, 136159, 223069, 272318, 446138, 953113, 1497749, 1906226, 2995498, 10484243, 20968486]

約数ペア:

[(1, 20968486), (2, 10484243), (7, 2995498), (11, 1906226), (14, 1497749), (22, 953113), (47, 446138), (77, 272318), (94, 223069), (154, 136159), (329, 63734), (517, 40558), (658, 31867), (1034, 20279), (2897, 7238), (3619, 5794)]