19978322

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3541}}^1$

素因数の和:3594

約数の個数: 32

約数和(自身を含む): 38083584

約数和(自身を除く): 18105262

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 3541, 5642, 7082, 24787, 46033, 49574, 92066, 109771, 219542, 322231, 644462, 768397, 1427023, 1536794, 2854046, 9989161, 19978322]

約数ペア:

[(1, 19978322), (2, 9989161), (7, 2854046), (13, 1536794), (14, 1427023), (26, 768397), (31, 644462), (62, 322231), (91, 219542), (182, 109771), (217, 92066), (403, 49574), (434, 46033), (806, 24787), (2821, 7082), (3541, 5642)]