20994684

素因数分解:

$2^2\times 3^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 50295168

約数和(自身を除く): 29300484

約数列:

[1, 2, 3, 4, 6, 12, 83, 107, 166, 197, 214, 249, 321, 332, 394, 428, 498, 591, 642, 788, 996, 1182, 1284, 2364, 8881, 16351, 17762, 21079, 26643, 32702, 35524, 42158, 49053, 53286, 63237, 65404, 84316, 98106, 106572, 126474, 196212, 252948, 1749557, 3499114, 5248671, 6998228, 10497342, 20994684]

約数ペア:

[(1, 20994684), (2, 10497342), (3, 6998228), (4, 5248671), (6, 3499114), (12, 1749557), (83, 252948), (107, 196212), (166, 126474), (197, 106572), (214, 98106), (249, 84316), (321, 65404), (332, 63237), (394, 53286), (428, 49053), (498, 42158), (591, 35524), (642, 32702), (788, 26643), (996, 21079), (1182, 17762), (1284, 16351), (2364, 8881)]