81859428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{324839}}^1$

素因数の和:324856

約数の個数: 36

約数和(自身を含む): 236483520

約数和(自身を除く): 154624092

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 324839, 649678, 974517, 1299356, 1949034, 2273873, 2923551, 3898068, 4547746, 5847102, 6821619, 9095492, 11694204, 13643238, 20464857, 27286476, 40929714, 81859428]

約数ペア:

[(1, 81859428), (2, 40929714), (3, 27286476), (4, 20464857), (6, 13643238), (7, 11694204), (9, 9095492), (12, 6821619), (14, 5847102), (18, 4547746), (21, 3898068), (28, 2923551), (36, 2273873), (42, 1949034), (63, 1299356), (84, 974517), (126, 649678), (252, 324839)]