21720406

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{7159}}^1$

素因数の和:7239

約数の個数: 16

約数和(自身を含む): 34282080

約数和(自身を除く): 12561674

約数列:

[1, 2, 37, 41, 74, 82, 1517, 3034, 7159, 14318, 264883, 293519, 529766, 587038, 10860203, 21720406]

約数ペア:

[(1, 21720406), (2, 10860203), (37, 587038), (41, 529766), (74, 293519), (82, 264883), (1517, 14318), (3034, 7159)]