21131974401

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2081}}^1\times {\mathrm{2659}}^1$

素因数の和:4829

約数の個数: 32

約数和(自身を含む): 30127372800

約数和(自身を除く): 8995398399

約数列:

[1, 3, 19, 57, 67, 201, 1273, 2081, 2659, 3819, 6243, 7977, 39539, 50521, 118617, 139427, 151563, 178153, 418281, 534459, 2649113, 3384907, 5533379, 7947339, 10154721, 16600137, 105134201, 315402603, 370736393, 1112209179, 7043991467, 21131974401]

約数ペア:

[(1, 21131974401), (3, 7043991467), (19, 1112209179), (57, 370736393), (67, 315402603), (201, 105134201), (1273, 16600137), (2081, 10154721), (2659, 7947339), (3819, 5533379), (6243, 3384907), (7977, 2649113), (39539, 534459), (50521, 418281), (118617, 178153), (139427, 151563)]